A friend of yours tells you that electric potential and voltage are the same thing. should you correct her, and if so, how?

Hi there!

We can begin by calculating the distance remaining after the reaction time.

Δd = vt

Calculate the distance traveled within this time:

Δd = (16)(.79) = 12.64 m

Subtract from the total distance:

150 - 12.64 = 137.66 m remaining

We can use the following equation to solve for the acceleration necessary:

vf² = vi² + 2ad, where vf = 0 since the train will have slowed down to rest.

Rearrange in terms of "a":

0 = vi² + 2ad

(-vi²) = 2ad

(-vi²)/2d = a

Plug in the given values:

(-(16²))/2(137.66) = a

-256/275.32 = -.9298 m/s²

Answer:

a = - 11.53[m/s^2]

Explanation:

The airplane slows down as its speed decreases from the initial value of 610 [m/s] to zero.

To calculate the acceleration value we use the following kinematics equation:

\(v_{f} = v_{i}+(a*t)\\\)

where:

Vf = final velocity = 0

Vi = initial velocity = 610 [m/s]

a = acceleration [m/s2]

t = time = 53 [s]

Now replacing:

0 = 610 + (a*53)

-610 = 53*a

a = - 11.53[m/s^2]

The negative sign means that the aircraft is losing speed, i.e. slowing down

Answer:

How do I determine density? Density is not something that is directly measured. Typically if you want to know the density of something you will weigh it and then measure its volume.

Answer:

5

Explanation:

10/2 = 5

Answer:

Explanation:

Field characteristics

The strength of the field at the Earth's surface ranges from less than 30 microteslas (0.3 gauss) in an area including most of South America and South Africa to over 60 microteslas (0.6 gauss) around the magnetic poles in northern Canada and south of Australia, and in part of Siberia.

Answer:

Q = 2.95*10^5 kJ

Explanation:

In order to calculate the energy required to melt the cooper, you first calculate the energy required to reach the boiling temperature. You use the following formula:

\(Q_1=mc(T_b-T_1)\)     (1)

m: mass of cooper = 540 kg

c: specific heat of cooper = 390 J/kg°C

Tb: boiling temperature of cooper = 1080°C

T1: initial temperature of cooper = 20°C

You replace the values of the parameters in the equation (1):

\(Q_1=(540kg)(390\frac{J}{kg.\°C})(1080\°C-20\°C)=2.23*10^8J\)

Next, you calculate the energy required to melt the cooper by using the following formula:

\(Q_2=mL_f\)         (2)

Lf: melting constant of cooper = 134000J/kg

\(Q_2=(540kg)(134000\frac{J}{kg})=7.24*10^7J\)

Finally, the total amount of energy required to melt the cooper from a temperature of 20°C is the sum of Q1 and Q2:

\(Q=Q_1+Q_2=2.23*10^8J+7.24*10^7J=2.95*10^8J=2.95*10^5kJ\)

The total energy required is 2.95*10^5 kJ

The total energy required to melt the copper is equal to \(2.95 \times 10^5\) Kilojoules.

Given the following data:

Scientifically, we know that:

To calculate the total energy required to melt the copper:

First of all, we would determine the quantity of heat energy required to reach the boiling temperature of copper.

Mathematically, quantity of heat is given by the formula;

\(Q_b = mc\theta\\\\Q_b = 540 \times 390 \times (1080-20)\\\\Q_b = 210600 \times 1060\\\\Q_b = 2.23 \times 10^8 \;Joules\)

Next, we would determine the quantity of heat energy required to melt copper.

\(Q_b = 540 \times 134000\\\\Q_b = 7.2 \times 10^6 \; Joules\)

For total energy:

\(Q_T = Q_b + Q_m\\\\Q_T = 2.23 \times 10^8 + 7.24 \times 10^7\\\\Q_T = 2.95\times 10^8\\\\Q_T = 2.95\times 10^5\; Kilojoules\)

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With standard diagnostic imaging instrumentation, the higher numerical value is typically found in lateral resolution (b).

It depends on the specific type of diagnostic imaging instrumentation being used. Axial resolution refers to the ability to distinguish objects along the direction of the imaging beam, lateral resolution refers to the ability to distinguish objects perpendicular to the imaging beam, and elevational resolution refers to the ability to distinguish objects in the direction of the imaging plane. Different imaging modalities and equipment can have different numerical values for each of these resolutions.

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Answer:

Newton's first law of motion is also known as law of inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.

Explanation:

Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.

In physics, Sir Isaac Newton's first law of motion is known as law of inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.

Generally, the inertia of an object such as a marble is greatly dependent or influenced by its mass; the higher quantity of matter in the marble, the greater will be its tendency to continuously remain at rest and consequently affecting its motion.

Answer:

\(0.361\ \text{m}\)

Explanation:

\(f_s\) = Frequency of source = 375 Hz

\(\Delta f\) = Difference between the maximum and minimum sound frequencies = 2.75 Hz

v = Speed of sound in air = 343 m/s

T = Time period = 1.8 s

\(v_m\) = Maximum speed of the microphone

We have the relation

\(\Delta f=2f_s\dfrac{v_m}{v}\\\Rightarrow v_m=\dfrac{\Delta fv}{2f_s}\\\Rightarrow v_m=\dfrac{2.75\times 343}{2\times 375}\\\Rightarrow v_m=1.26\ \text{m/s}\)

Amplitude is given by

\(A=\dfrac{v_mT}{2\pi}\\\Rightarrow A=\dfrac{1.26\times 1.8}{2\pi}\\\Rightarrow A=0.361\ \text{m}\)

The amplitude of the simple harmonic motion is \(0.361\ \text{m}\).

That's a pretty good intuitive definition of a theory .

The potential differences is ΔV12=V2−V1=0V

ΔV23=V3−V2=5V

ΔV34=V4−V3= 0V

and ΔV41=V1−V4=-5V

From the figure, there is no connection between the points 1 and 4 . Hence, the potential at the points 4 and 3 is same and is equal to zero.

\(\Delta V_{34} & =V_4-V_3 \\& =0\)

Similarly, the potential at the points 1 and 2 is same and is equal to zero.

\(\Delta V_{12} & =V_2-V_1 \\& =0\)

The potential difference between the points 4 and 1 is equal to potential difference between the points 3 and 2.

Given that the potential difference across the points 3 and 2 is,

\(\Delta V_{23} & =V_3-V_2 \\& =5 \mathrm{~V}\)

The potential difference between the points 4 and 1 is also 5V.

\(\Delta V_{41} & =-\Delta V_{23} \quad\left(\because \Delta V_{23}=\Delta V_{14}\right) \\& =-5 \mathrm{~V}\)

Therefore, the required answer is 0,5V, 0,-5V.

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Note:- The correct question could be,

5 V battery with metal wires attached to each end.

The figure shows two wires connected to a battery’s positive and negative terminals. These wires stop short of completing a circuit. Four points are marked on the wires. Point 1 is at the end of the wire connected to the positive terminal. Point 2 is at the negative terminal. Point 3 is at the positive terminal. Point 4 is at the end of the wire connected to the negative terminal.

What are the potential differences ΔV12=V2−V1, ΔV23=V3−V2, ΔV34=V4−V3, and ΔV41=V1−V4?

Enter your answers numerically separated by commas

Answer:

5.4mL

Explanation:

20.25g divided by 3.75g/mL= 5.4mL

Answer:

yes

Explanation:

Answer and Explanation: Comets are frozen extras from the development of the nearby planetary group made out of residue, rock and frosts. They range from a couple of miles to many miles wide, however as they circle nearer to the sun, they heat up and regurgitate gases and residue into a shining head that can be bigger than a planet. This material structures a tail that extends a huge number of miles.

Answer:

Yes

Explanation:

Certain types of weathering are more common in certain environments than others.

This is very true.

The required speed at which the player reaches the plate is calculated to be 4.12 m/s.

The initial velocity of baseball player is given as 5.03 m/s.

The difference in distance is given as 4.8 m.

Coefficient of kinetic friction is given as 0.180.

Coefficient of static friction is given as 3.14.

We know acceleration due to gravity is g = 9.8 m/s²

To calculate the distance at which the ball stopped is,

⇒ d = u²/2μg = 5.03²/(2× 0.18 × 9.81) = 25.3/3.53 = 7.167 m

Calculating acceleration, we have,

a = (v² - u²)/2d = 5.03²/(2× 7.167) = 1.765 m/s²

where,

v is final speed

u is initial speed

d is distance

So, a = 1.765 m/s²

u is zero, as it is at maximum distance

v = √(u² + 2 a d) = √(0² + 2 a d) = √(2× 1.765 × 4.8) = √16.944 = 4.12 m/s

Thus, the speed at which he reaches the plate is calculated to be 4.12 m/s.

The given question is incomplete. The complete question is 'The coefficient of static friction is 3.14.

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In electrical circuits, voltage is a measure of electric potential energy per unit charge. When the electrical current passes through a load (a resistor), a voltage drop occurs. Furthermore, a voltage source (a DC voltage source) produces a potential difference that creates an electric current flow in the circuit.

Topologies are a series of arrangements of electrical components that operate together to achieve a specific goal. The voltage drop across the load and the voltage produced by the voltage source may be used to estimate the peak voltage values across the loads in a circuit topology.In Circuit 1, the maximum voltage that can be seen across the load and DC voltage source is VCC - VD,

where VCC is the voltage produced by the voltage source and VD is the voltage drop across the diode. As a result, the peak voltage for the resistor and voltage source in Circuit 1 is given by VCC - VD = 15 - 0.7 = 14.3V.In Circuit 2, the maximum voltage that can be seen across the load and DC voltage source is VD. In a forward-biased diode, the voltage drop is usually around 0.7V.

As a result, the peak voltage for the resistor and voltage source in Circuit 2 is given by VD = 0.7V.The voltage drop across the diode causes a loss of energy in both circuit topologies. As a result, the peak voltages that may be measured across the loads will be lower than the voltage produced by the voltage source. As a result, circuit designers try to use diodes with the lowest possible voltage drops to minimize energy loss.

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Answer:

Explanation:

The answer to the question related to the time for two balls to reach the ground is option C, the two balls will reach the ground at the same time because the horizontal and vertical planes of motion are independent of each other, and they are also released from the same height.  

When a ball is dropped, knowing the height we could find the time with the following equation:

(1)

Where:

: is the final height

: is the initial height

: is the initial speed of the ball in the vertical direction = 0 (it is dropped)

g: is the acceleration due to gravity

When the ball is launched horizontally from the same height, we could find the time with equation (1) since the acceleration in the horizontal direction is zero and the initial velocity in the vertical direction is also zero.

The horizontal motion is related to the equation:

  (2)

We can notice in both cases that the ball is accelerated only by gravity.

Let's evaluate each statement

A) This statement is incorrect because the path is the same for both cases. The ball is dropped and launched from the same height.

B) This statement is also incorrect. The velocity of the dropped ball is the same as the velocity of the launched ball because the ball is accelerated only by gravity.

C) This statement is correct. We can see that we would get the same time in equation (1) since , , and  is the same for the dropped ball and the launched ball.  

D) This statement is incorrect. The nature of motion is related to a freefall motion in both cases.  

Therefore, the answer is option C.

Answer:

F = 2800 kg*m /s^2

Or F = 2800 N

A superheated cloud of gas and dust swirling around a massive object (usually a black hole or neutron star) is called an accretion disk. The correct option is c.

Accretion disk is a heavy object surrounded by flow of gas, plasma, dust, or particles.  The materials surrounding the heavy object orbiting in the gravitational field of the object that loses energy and angular momentum as it slowly spirals inward.

This cloud can reach incredible speeds and temperatures as gravity causes it to build up more and more friction, eventually releasing x rays.

Thus, accretion disk is a superheated cloud of gas and dust swirling around a massive object.

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Answer:

X = 24.135 kilometres

Explanation:

Given the following data;

Distance = 15 miles

To convert the value in miles to kilometers;

Conversion:

1 mile = 1.609 kilometres

15 miles = X kilometres

Cross-multiplying, we have;

X = 1.609 * 15

X = 24.135 kilometres

"The type of heat transfer that occurs through fluid motions is known as convection."

Convection, which is the extensive movement of molecules within gases and liquids, is the mechanism through which heat is transported. Conduction is used to move heat from the object to the fluid initially, but fluid motion is responsible for the bulk of the heat transfer.

Forced convection is the term for the movement of fluid caused by an external source (such as a fan, blower, etc.), while natural or free convection refers to the movement of fluid that occurs naturally. This type of heat transfer occurs only when the fluid is in motion.

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The velocity is 6.67 x 10⁻⁴

What is Momentum?

"Mass in motion" can be used to describe momentum. Mass exists in all things; Therefore, if an object is moving, it has momentum—its mass is moving. There are two factors that determine an object's momentum level: how much and how quickly the objects are moving. Mass and velocity are two variables that affect momentum.

Momentum = Mass x Velocity

p = m x v

According to the given question:

Given:

Momentum P = 2

Mass of object = 3,000

We can find velocity using p = m x v

Therefore, Velocity v = p/m

v = 2/3,000

v = 6.67 x 10⁻⁴

Hence the velocity is  6.67 x 10⁻⁴

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When a neutron is bombarded onto the atomic mass of boron, a process known as neutron capture occurs.

During neutron capture, the neutron is absorbed by the boron nucleus and the boron atom becomes unstable. The unstable boron nucleus then undergoes a series of nuclear reactions, resulting in the production of two high-energy alpha particles and lithium-7. This reaction is commonly known as the boron neutron capture therapy (BNCT) and is used to treat certain types of cancer. In BNCT, boron-10 is used instead of natural boron as it has a high neutron capture cross-section, meaning it has a high probability of capturing a neutron. When boron-10 captures a neutron, it becomes unstable and undergoes nuclear reactions, resulting in the release of high-energy alpha particles which can penetrate tissues and destroy cancer cells.

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14mg = 14 × 10^-3 g

= 14 × 10^-3 / 10^3 kg

= 14 × 10^-6 kg

= 0.014 kg

☆...hope this helps...☆

_♡_mashi_♡_

Answer:

0.000014 kg

Explanation:

Answer:

252 Joules.

Explanation:

From the question, we can deduce that baby carriage isn't moving and as such possess energy due to its position. This ultimately implies a gravitational potential energy.

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

\( P.E = mgh\)

Where, P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

Given the following data;

Height = 21m

Weight of carriage with baby = 12N

\( P.E = mgh\)

But we know that weight = mg = 12N

Substituting into the equation, we have;

\( P.E = 12 * 21 \)

\( P.E = 252J\)

Therefore, the energy possessed by the carriage is 252 Joules.

Answer:

Newton Metre

Explanation:

The generator power will be 59 kW. Power drop is the main factor for finding the generated power.

The maximum power input allowed to pass through a piece of equipment is known as the equipment's power rating.

Power drop = 5%

The relation of the frequency change with the power drop is;

\(\rm \frac{df}{dp} =5\%\\\\ \frac{f_{rated-f_1}}{P_{rated}-P_1}=0.05\\\\ \frac{f_{rated-60}}{100-61}=0.05\\\\ f_{rated}=61.95\)

For the grid frequency, 59.9 Hz

\(\rm \frac{f_{rated-f_2}}{P_{rated}-P_2}=0.05\)

\(\rm \frac{61.95-f_2}}{100-P_2} =0.05\\\\ 100-P_2 =20(61.95-59.9)\\\\P_2=100-41 \\\\ P_2=59 \ kW\)

Hence, the generator power will be 59 kW.

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The displacement is zero, the magnitude of the velocity is also zero, regardless of the fact that the earth covered a distance of 2.36 x 10¹¹ m during the summer months.

(a) The distance covered by the earth in one-fourth of its orbit of radius 1.50 x 10¹¹ m is given by;

                    `d = 1/4 * 2πr`where r = 1.50 x 10¹¹ md = 2.36 x 10¹¹ m

We can now find the average speed of the earth as;`average speed = d/t`where t = 7.89 x 10⁶ s`

                                   average speed = 2.36 x 10¹¹ m / 7.89 x 10⁶

                                          s = 2.99 x 10⁴ m/s`

Therefore, the average speed of the earth during the summer months is 2.99 x 10⁴ m/s.

(b) We can find the magnitude of the average velocity of the earth during the summer months by dividing the distance covered by the time taken.

The displacement is zero since the starting and ending points are the same.

                               `average velocity = displacement / t`where t = 7.89 x 10⁶ s

Average velocity is given by;` average velocity = 0 / 7.89 x 10⁶ s`

Therefore, the magnitude of the average velocity of the earth during the summer months is zero.

The average speed of the earth during the summer months is 2.99 x 10⁴ m/s.

The magnitude of the average velocity of the earth during the summer months is zero.

The reason the magnitude of the average velocity of the earth during this period is zero is that velocity is a vector quantity that takes into account the direction and magnitude of motion.

Since the displacement is zero, the magnitude of the velocity is also zero, regardless of the fact that the earth covered a distance of 2.36 x 10¹¹ m during the summer months.

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