Why is thermal energy classified as kinetic energy?

Answers

Answer 1

Answer:

Thermal energy is an example of kinetic energy, as it is due to the motion of particles, with motion being the key. Thermal energy results in an object or a system having a temperature that can be measured. Thermal energy can be transferred from one object or system to another in the form of heat.

Explanation:

Answer 2

Answer:

Thermal energy is an example of kinetic energy, as it is due to the motion of particles, with motion being the key. Thermal energy results in an object or a system having a temperature that can be measured. Thermal energy can be transferred from one object or system to another in the form of heat.

Explanation:


Related Questions

3. test yourself q3 the following tables represent abbreviated balance sheets for your bank. assume the required reserve ratio is 12.5 nd that the oversimplified money multiplier formula applies.

Answers

Based on the information provided, I assume that you are asking how to calculate the maximum potential increase in the money supply for your bank using the oversimplified money multiplier formula and the given required reserve ratio of 12.5%.

To calculate the maximum potential increase in the money supply, you need to use the following formula:

Maximum Potential Increase in the Money Supply = Initial Deposit x Money Multiplier

The oversimplified money multiplier formula is:

Money Multiplier = 1 / Reserve Ratio

So, first, you need to calculate the reserve requirement for each balance sheet. The reserve requirement is equal to the required reserve ratio multiplied by the total deposits.

For example, let's say that one of the balance sheets shows total deposits of $1,000,000. The reserve requirement would be:

Reserve Requirement = Required Reserve Ratio x Total Deposits
Reserve Requirement = 0.125 x $1,000,000
Reserve Requirement = $125,000

Next, you can calculate the initial deposit for each balance sheet. The initial deposit is equal to the total deposits minus the reserve requirement.

Using the same example, the initial deposit would be:

Initial Deposit = Total Deposits - Reserve Requirement
Initial Deposit = $1,000,000 - $125,000
Initial Deposit = $875,000

Finally, you can calculate the maximum potential increase in the money supply for each balance sheet using the oversimplified money multiplier formula:

Money Multiplier = 1 / Reserve Ratio
Money Multiplier = 1 / 0.125
Money Multiplier = 8

Maximum Potential Increase in the Money Supply = Initial Deposit x Money Multiplier
Maximum Potential Increase in the Money Supply = $875,000 x 8
Maximum Potential Increase in the Money Supply = $7,000,000

Therefore, for the balance sheet with total deposits of $1,000,000, the maximum potential increase in the money supply is $7,000,000. You can repeat this calculation for each of the other balance sheets to determine their respective maximum potential increases in the money supply.

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how does the brightness of light on a surface change when a point source of light is twice as far away?

Answers

The brightness of a light will appear one-fourth times bright when the point source is twice far away.

The reason behind why does a light source seems dimmer or darker as it goes farther away this is that the light coming from the source spreads in all directions. we can see that a campfire no matter what direction we are looking at it from, even if we are flying above and look down, In a flashlight, the body of the flashlight blocks light in some directions and redirects it out the front , so it seems to be shining in only one direction.  But the light bulb inside the flashlight, like the campfire, shines in all directions.

Therefore, if we as are twice as far away from a light source, it should appear one-fourth as bright. Scientists call this as "the inverse squared law." In mathematical terms, we can find out the relative brightness of two objects by comparing their relative distances, squaring the value, and then inverting the value. (Twice as many steps from the wall squared is four, and inverting four gives one-fourth.)

So the light coming from a point source which is twice as far away will appear one- fourth times brighter than its original.

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who was the fist man on moon

Answers

Answer:

Neil Armstrong

Explanation:

Answer:

Neil Armstrong.

Explanation:

. PLEASE GIVE BRAINLIEST.

A person uses a force of 7 N to drag a garbage can a distance of 15 m. How much work is done on the garbage can?

Answers

work=force*displacement

7N*15m=105Nm

a rectangular trough, 1.7 m long, 0.80 m wide, and 0.35 m deep, is completely full of water. one end of the trough has a small drain plug right at the bottom edge. When you pull the plug, at what speed does water emerge from the hole?(in m/s)

Answers

The speed at which water emerges from the hole is 0.245 m/s.

Explanation:-

The rectangular trough is filled with water.

One end of the trough has a small drain plug at the bottom edge.

The speed at which water emerges from the hole is asked to be calculated.

The length, width, and depth of the trough are given to be 1.7 m, 0.8 m, and 0.35 m, respectively.

Let the water emerging from the hole have a velocity v and the area of the hole be A.

Now, the mass of water flowing out of the hole in time t is given by

m = ρAVt

where ρ is the density of water which is 1000 kg/m³.

This mass will also be equal to the mass of water displaced by the hole, which is given by

m = ρLWH

where L, W and H are the dimensions of the water that is displaced.

Here, L and W are the dimensions of the hole, and H is the depth of the water which is displaced.

Let the length and width of the hole be x and y, respectively.

Then L = x, W = y.

The height of the water displaced is the same as the height of the water in the trough, which is 0.35 m.

Thus, m = ρxy(0.35) ... (1)

and m = ρAVt ... (2)

From (1) and (2), we get

ρxy(0.35) = ρAVt

=> v = xy(0.35) / tA = xy

=> x = A/yv = xy(0.35) / tA =0.8x0.35

=> x = 0.28 m

Substituting x = 0.28 and A = xy = 0.008 m² in the expression for v, we get:

v = xy(0.35) / tA=0.008

=> v = 0.245 m/s

Therefore, the speed at which water emerges from the hole is 0.245 m/s.

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Calculate the time needed for a 0.600 kg hammer to reach the surface of the Earth
if dropped from 10.0 m on Earth and on the Moon. The gravitational strength on
the Moon is 1.6 N/kg.

Answers

The time needed for the hammer to reach the surface of the Earth is 3.54 s.

Time of motion of the hammer

The time of motion is calculated as follows;

t = √(2h/g)

where;

h is height of fallg is acceleration due to gravity

t = √(2 x 10 / 1.6)

t = 3.54 s

Thus, the time needed for the hammer to reach the surface of the Earth is 3.54 s.

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PLS HELP ME!!!
The engine cars that pull high-speed trains usually taper to a point in front, as shown in the illustration. How does this shape change the forces acting on the moving engine car?

PLS HELP ME!!!The engine cars that pull high-speed trains usually taper to a point in front, as shown

Answers

hmmmmmmmmm i don’t know

Starting from one shore, you row a boat across a narrow river to the shore on the other side. the river is 35.0 m
wide. as you row, the river current causes your boat to move down the river a distance of 50.0 m.
35.0 m
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what is the resultant displacement of your boat? determine the magnitude of the displacement.
the magnitude of the displacement of your boat is
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Answers

If you row a boat across a narrow river to the shore on the other side. The resultant displacement of the boat is 61.03 meters.

A displacement is a vector in geometry and mechanics that has a length equal to the shortest distance between a moving point P's initial and final positions. It measures the length and direction of the net or total motion in a straight line from the starting location to the ending position of the point trajectory. The translation that links the starting location to the ending position can be used to spot a displacement.

According to the question,

Starting from one bank, you can row a boat to the other shore across a narrow river. The river is 35.0 m wide, and as you row, the river current pulls your boat 50.0 m downstream.

It means,

The horizontal element (X) = 50.0m and the vertical element (Y) = 35.0m

So, The magnitude of the resultant displacement (Z) = √(X²+Y²)

[By Pythagoras theorem]

∴ Z = √(50²+35²)

⇒ Z = √(3425) = 61.03m

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two ways in which the starting conditions in a protogalactic cloud might cause it to become an elliptical (rather than spiral) galaxy are if the cloud begins with either

Answers

Starting conditions in a protogalactic cloud can lead to the formation of an elliptical galaxy if the cloud begins with a high angular momentum or a lack of cold gas.

High angular momentum: If the protogalactic cloud has a high angular momentum, it will lead to the formation of a rapidly rotating disk. However, if there are significant mergers or interactions with other galaxies, the angular momentum can be transferred to the surrounding environment, causing the disk to lose its rotational motion and become more spheroidal or elliptical in shape. This process is known as angular momentum redistribution. Lack of cold gas: Elliptical galaxies are generally devoid of active star formation and have a lower abundance of cold gas compared to spiral galaxies. If the protogalactic cloud lacks a sufficient amount of cold gas, it will hinder the formation of new stars and result in an elliptical galaxy. This could be due to various factors such as a low initial gas content, strong galactic winds, or intense feedback from massive stars, which expel gas from the system. These two scenarios highlight how the initial conditions of a protogalactic cloud, specifically the angular momentum and the presence of cold gas, play crucial roles in determining whether it will evolve into an elliptical or a spiral galaxy.

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An airplane accelerates from a velocity of 25.88 m/s at a constant rate of 4.21 m/s2 over 590.39 m. What is its final velocity?

Answers

The final velocity of the airplane is 75.1 m/s.

What is velocity?

Velocity can be defined as the measurement of rate and direction of motion.

The velocity of a moving object changes with time. Thus, a moving object will have an initial velocity as well as a final velocity.

The formula for final velocity, V is given by the formula below:

v = √(u² + 2as)

where

u = initial velocitya = accelerations = distance or displacement

The values are as follows:

u = 25.88 m/s

a = 4.21 m/s²

s = 590.39 m

Substituting the values

v = √{(25.88)² + 2 * 4.21 * 590.39)}

v = 75.1 m/s

Therefore, the final velocity, v is 75.1 m/s

In conclusion, the final velocity of the airplane is derived from the initial velocity, acceleration, and distance of travel.

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Project paper:
It consists of a written report that the groups will prepare. Each
group of students has to produce a collective analysis of a
selected company (Mercedes Benz).
1. Strategy Diamond
2. V

Answers

The VRIO analysis will provide valuable insights into the internal factors that contribute to Mercedes Benz's competitive position in the automotive industry.

VRIO Analysis

In addition to the Strategy Diamond, the group will also conduct a VRIO analysis as part of their collective analysis of Mercedes Benz.

VRIO stands for Value, Rarity, Imitability, and Organization, and it is a framework used to evaluate the resources and capabilities of a company.

The VRIO analysis helps assess the competitive advantage of a company by examining whether its resources and capabilities are valuable, rare, difficult to imitate, and well-organized.

This analysis allows the group to identify the company's key strengths and weaknesses and understand how they contribute to its overall strategy.

By applying the VRIO framework to Mercedes Benz, the group can determine which aspects of the company's operations and resources provide a sustainable competitive advantage.

They will evaluate the value of Mercedes Benz's brand reputation, technological innovation, manufacturing capabilities, and distribution network.

They will also assess the rarity of these resources and capabilities and analyze whether competitors can easily imitate or replicate them. Lastly, the group will examine how well Mercedes Benz's organization and management effectively leverage these resources to create value for the company.

The VRIO analysis will provide valuable insights into the internal factors that contribute to Mercedes Benz's competitive position in the automotive industry.

It will help the group understand the unique aspects of the company's operations and guide their analysis of the broader strategic context outlined in the Strategy Diamond.

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A 5.5 Kg rock falling in air experience a force due to air resistance of 50N. What is the acceleration

Answers

Answer:

F1 = ma = 5.5 kg * 10 m/s² = 55 N  (force acts downwards)

F2 = - 50 N (force acts upwards)

net force = 5 N (downwards)

F = ma

a = F/m

a = 5 / 5.5

a = 0.91 m/s²

Explanation:

Since the object is falling downwards, the air resistance acts upwards. We also have a force acting downwards since the rock experiences gravitational acceleration (the value of g above is 10 m/s² for the sake of easier calculation but you can also set it to be 9.81 m/s² which is the more accurate value). Since the air resistance and force due to gravity are acting in opposite directions and force is a vector, we have to put a minus in front of F1 or F2 (it doesn't matter which direction you chose to be the positive one) . Then we calculate the net force, aka the difference between F1 and F2. Finally, knowing the force and the mass, we can calculate the acceleration.

when a particle is located a distance meters from the origin, a force of newtons acts on it. find the work done in moving the particle from to . find the work done in moving the particle from to . find the work done in moving the particle from to .

Answers

When a particle is located a distance 2 meters from the origin, a force of 4 newtons acts on it.

The work done in moving the particle from A to B is 16J

The work done in moving the particle from B to C is -8J

The work done in moving the particle from C to D is 8J

Force F = 4N

Displacement dx = 2m

Total displacement of the particle from point A to B is dAB = 4m.

Work done is given by: W = F.dx (cosθ)  

Where,θ is the angle between the force and displacement.

1. Work done in moving the particle from A to B:

Let the particle is located at point A (x = 0). The force F acts in the positive direction of the x-axis. Therefore, the angle between the force and displacement is 0°.The work done in moving the particle from point A to B is

WAB = F(dx) cosθ

= (4 N)(4m) cos 0°

= (4 N)(4m)

= 16 J

2. Work done in moving the particle from B to C:

The displacement of the particle from B to C is dBC = 2m.

Therefore, the total displacement of the particle from point A to C is

dAC = dAB + dBC

=4m + 2m = 6m.

The force F acts in the negative direction of the x-axis. Therefore, the angle between the force and displacement is 180°.The work done in moving the particle from point B to C is

WBC = F(dx) cosθ

= (4 N)(2m) cos 180°

= (4 N)(-2m)

= -8 J

Note: Here, cos 180° = -1.

3. Work done in moving the particle from C to D:

Let the particle is located at point D (x = 6m).

The force F acts in the positive direction of the x-axis. Therefore, the angle between the force and displacement is 0°.

The work done in moving the particle from point C to D is WCD = F(dx) cosθ

= (4 N)(2m) cos0°

= (4 N)(2m)

=8J

Therefore, the work done in moving the particle from A to B is 16 J, the work done in moving the particle from B to C is -8 J, and the work done in moving the particle from C to D is 8 J.

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What was the first major action Roosevelt took AFTER he was inaugurated (sworn in as president)

He pardoned Hoover for war crimes against the Bonus Army
He proposed a reorganization of the Supreme Court
He closed all of the nation’s banks and ordered inspections
He established the Civil Works Administration to provide job relief

Answers

Answer:

the second one i guess????

Explanation:

Answer:

He closed all of the nation’s banks and ordered inspections

Explanation:

explain how two atoms could end up repelling each other.

Answers

Answer:

Two atoms could repell each other if they have the same charge... A positive and a positive atom or a negative and a negative atom

Explanation:

Arun places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker. Which mode of transfer of heat energy occurs in the water during this experiment? Justify your answer

Answers

Answer:

Thermal convection

Explanation:

When ice cubes are placed in water, ice cubes start melting. This is because water transfers its heat to ice cubes until the temperature becomes equal and the process is called "thermal Convection".

Thermal convection is the mode of transfer of heat energy that will occur when ice cubes will be added to the hot water and at the end of the experiment when both are at the same temperature, no ice cube will left.

Hence, the correct answer is "thermal convection".


Provide an example of a product you believe is elastic and
explain your answer. Provide an example of a product you believe is
inelastic and explain your answer.

Answers

Example of an elastic product: Smartphone

Explanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer.

Example of an inelastic product: Prescription medication

Explanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded.

Example of an elastic product: SmartphoneExplanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer. This is because smartphones are considered non-essential goods with substitutes available in the market. If the price of a particular smartphone model increases, consumers have the option to choose a different brand or model that offers similar features at a lower price. Similarly, if the price of smartphones decreases, consumers may be more willing to upgrade their existing devices or purchase additional smartphones as they become more affordable. The demand for smartphones is responsive to changes in price, making it an elastic product.Example of an inelastic product: Prescription medicationExplanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded. Prescription medication is often essential for maintaining health and treating medical conditions, and there may be limited substitutes available. When the price of prescription medication increases, consumers may still continue to purchase it regardless of the price change, as their health and well-being depend on it. The demand for prescription medication is relatively unresponsive to changes in price because it is a necessity and does not have easily accessible alternatives. People are generally willing to pay higher prices for medications they need, even if it means reducing spending on other goods and services. Thus, prescription medication is considered an inelastic product.

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which of the following is not a main function of the human's body nervous system?

Answers

Answer:

I can't see option dear

Explanation:

A circuit is built based on the circuit diagram shown. What is the current in the 50 Ω resistor

Answers

Answer:

1.2 A

Explanation:

From the diagram attached, The three resistors are parallel because the each ends of the resistors are connected together. Since they are in parallel, the voltage across each resistor is the same. The voltage source connected in parallel to the resistors is 60 V. Therefore the voltage across the 50 Ω resistor is 60 V. Using ohm law:

Voltage (V) = Current (I) × Resistance (R)

V = IR

I = V/R

I = 60 V/ 50 Ω

I = 1.2 A

The current in the 50 Ω resistor is 1.2 A

A circuit is built based on the circuit diagram shown. What is the current in the 50 resistor

How can we drop eggs the fewest amount of times without breaking it?​

Answers

Answer:

drop in water

Explanation:

follow me m mm m

use conservation of energy to find the angular velocity ω of the wheel when the wheel is fully unwound. (remember that the rotational energy is erot

Answers

To find the angular velocity (ω) of a fully unwound wheel using the conservation of energy, we can use the equation ω = √((2mgh)/I),

To find the angular velocity (ω) of a fully unwound wheel using the conservation of energy, we need to consider the rotational energy (Erot). The rotational energy of the wheel is given by the formula Erot = (1/2)Iω², where I is the moment of inertia of the wheel and ω is the angular velocity.

When the wheel is fully unwound, its potential energy (Ep) is converted into rotational energy. Therefore, we can equate the initial potential energy (Epi) to the final rotational energy (Erot) using the conservation of energy principle.

Let's assume the initial potential energy of the wheel when it is fully wound is Epi.

1. Set up the conservation of energy equation: Epi = Erot

2. Substitute the expressions for potential energy and rotational energy: mgh = (1/2)Iω², where m is the mass of the wheel, g is the acceleration due to gravity, and h is the height from which the wheel is unwound.

3. Rearrange the equation to solve for ω: ω = √((2mgh)/I)

Therefore, the angular velocity (ω) of the wheel when it is fully unwound is given by ω = √((2mgh)/I).

In conclusion, to find the angular velocity (ω) of a fully unwound wheel using the conservation of energy, we can use the equation ω = √((2mgh)/I), where m is the mass of the wheel, g is the acceleration due to gravity, h is the height from which the wheel is unwound, and I is the moment of inertia of the wheel.

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An employee was watching Jessica, an IT employee, typing in many different confusing terms. Jessica explained that she needed to fix the code and test a couple of programs before she could train the employee on how to use the software. Which IT career would be responsible for these tasks?

Network Systems
Programming and Software Development
Information Support and Services
Interactive Media

Answers

Answer:

B.) Programming and Software

Explanation:

Answer on Edge

Answer:

its B

Explanation:

at what distance from a -5.35*10^-6 C charge will the electric potential be -500 v?

Answers

Answer:

Different values of Q will make different values of electric potential V (shown in the image). The electric potential arising from a point charge Q, at a distance r from the charge is observed to be where ε0 is the permittivity of vacuum. VE is known as the Coulomb potential .Explanation:

The distance from the -5.35 × 10⁻⁶ C charge where the electric potential is -500 V is approximately 0.0935 meters or 9.35 cm.

To determine the distance from a charge where the electric potential is -500 V, we can use the formula for electric potential due to a point charge:

V = k × (Q / r)

Where:

V is the electric potential (in volts),

k is the Coulomb's constant (approximately 8.99 × 10⁹ Nm²/C²),

Q is the charge (in coulombs), and

r is distance from the charge (in meters).

Rearranging the formula, we solve for the distance:

r = k × (Q / V)

Substituting the given values into the equation

k = 8.99 × 10⁹ Nm²/C²,

Q = -5.35 ×10⁻⁶ C, and

V = -500 V,

r = (8.99 × 10⁹ Nm²/C²) × (-5.35 × 10⁻⁶ C / -500 V)

Calculating this expression:

r ≈ 0.0935 meters or 9.35 cm

Therefore, the distance from the -5.35 × 10⁻⁶ C charge where the electric potential is -500 V is approximately 0.0935 meters or 9.35 cm.

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a car and a delivery truck both start from rest and accelerate at the same rate. however, the car accelerates for twice the amount of time as the truck. what is the traveled distance of the car compared to the truck?

Answers

the distance traveled by the car is twice the distance traveled by the truck.

Let's assume that the acceleration rate is constant for both the car and the delivery truck. We'll denote the acceleration as "a" and the time for which the truck accelerates as "t".

For the car, it accelerates for twice the time as the truck, so the time for which the car accelerates is 2t.

Using the equations of motion, we can find the distance traveled by each vehicle during their respective acceleration periods.

For the truck:

Distance traveled by the truck (d_truck) = (1/2) * a * t^2

For the car:

Distance traveled by the car (d_car) = (1/2) * a * (2t)^2 = 2 * (1/2) * a * t^2 = 2 * d_truck

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A video recorder is loaded with a tape which plays for 180 minutes.
The length of the tape is 260 m.
(a) (i) Calculate the speed of the tape, in metres per minute.

Answers

The speed of the tape, in metres per minute is 1.44 meter per minute

What is speed?

Speed is the distance travelled per unit. Mathematically, it can be expressed as:

Speed = distance / time

With the above formula, we can obtain the speed of the tape. Details below

How to determine the speed of the tape

The following data were obtained from the question:

Distance = 260 mTime = 180 minutesSpeed =?

The speed of the tape can be obtained as illustrated below:

Speed = distance / time

Speed = 260 / 180

Speed = 1.44 meter per minute

Thus, the speed of the tape is 1.44 meter per minute

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A ball is thrown straight up with an initial velocity of 10.00 m/s so that it reaches a maximum height of 30m. How fast was it going when it was 10m high from the ground?

Answers

28.284 m/s fast it was  going when it was 10m high from the ground.

Calculation :

Given:

The maximum height reached by the ball s=30 m

The object will come into rest at the maximum height.

The gravity always acts downward so the acceleration of the ball ⇒a=g=−10 m/s²

From the third equation of motion:

v²=u²+2as

Thus the initial velocity of the ball is:

u=\(\sqrt{v^{2}-2as}\)

=\(\sqrt{0-2(-10m/s^{2} )(30 m)}\)

u=24.495 m/s

From the first equation of motion:

v=u+at

The time is taken by the ball to reach the maximum height is:

t=(v−u)/a

=[0−(24.495 m/s)]/(−10 m/s²)

t=2.4495 s

Now From the third equation of motion:

v²=u²+2as

Thus the velocity of the ball at 10 m is:

v=\(\sqrt{u^{2} +2as}\)

=\(\sqrt{(24.495 m/s)^{2} -2(-10 m/s^{2} )(10 m)}\)

v≈28.284 m/s

Velocity is a vector representation of the displacement experienced by an object or particle over time. The standard unit for velocity magnitude (also called velocity) is meters per second (m/s).

Velocity is the percentage of time an object moves along a path, and Velocity is the speed and direction of an object's movement. That is, velocity is a scalar value and velocity is a vector.

Velocity (v) is a vector quantity that measures displacement (or change in position Δs) with respect to change in time (Δt) and is given by the formula v = Δs/Δt.

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Which of the following particle is responsible for the transfer of static charge?
A. Neutron
B. Electron
C. Proton
D. A & C

Answers

Answer:

B. Electron

Static charge is produced by electron transfer.

Explanation:

Answer A: The neutron does not possess a charge and is said to be neutral.

Answer D: Protons and neutrons never move from object to object.

Only negative charges can move freely from one object to another. The energy that comes from these charges particles is called electrical energy.

....

Hope this answer can help you.

The answer is an electron.

In which part of the electromagnetic spectrum have astronomers been unable to get any information

Answers

With our current technology astronomers have been able to get all the information about all the parts of the electromagnetic spectrum.

An astronomer refers to a scientist whose major field of study deals with the observation of celestial bodies like comets, planets and moons. They perform observational (by evaluating the data) or theoretical astronomy when observing astronomical objects including stars, planets, moons, comets, and galaxies.

According to their frequency or wavelength, electromagnetic waves are categorized into the electromagnetic spectrum. Electromagnetic waves are divided into various types based on their wavelength. The electromagnetic spectrum is the term for this division.

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A pinball bangs against a bumper giving the ball a speed of 42cm/s if the ball has a mass of 50.0g what is the ball’s kinetic energy in joules

Answers

Explanation:

Given:-

mass=50g

velocity=42cm/s

To find:-

Kinetic energy

Solution:-

As we know that

\({\boxed{\sf kinetic\:energy={\dfrac {1}{2}}mv^2}}\)

Substitute the values

\({:}\longrightarrow\)\(\sf k.v={\dfrac {1}{{\cancel{2}}}}\times 50\times {\cancel{42}}^2 \)

\({:}\longrightarrow\)\(\sf k.v=50\times 21^2 \)

\({:}\longrightarrow\)\(\sf k.v=50×441 \)

\({:}\longrightarrow\)\(\sf k.v=22050MJ \)

1Joule=1000milijoules22050MJ=\({\dfrac {22050}{1000}}=22.05J\)=22J(Approximately)

\(\therefore\)\({\underline{\boxed{\bf Kinetic\:energy=22Joule}}}\)

large hydroelectric dams produce a lot of carbon-free electricity once they are built but they have significant ______ consequences for areas nearby.

Answers

Large hydroelectric dams have significant environmental consequences for areas nearby.

These outcomes may include:flooding of wide regions of land, which may cause both human and animal displacement.Changes in water flow may have an effect on ecosystems downstream.River bank erosion and sediment buildup in reservoirs can contaminate water sources downstream.loss of biodiversity due to habitat fragmentation and fish migration caused by dams.Reservoir methane emissions may have an impact on climate change.

Therefore, Making decisions about the development of hydroelectric dams requires balancing the environmental costs against the advantages of clean, renewable electricity.

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