Raindrops fall m from a cloud to the ground. If they were not slowed by air resistance, how fast would the drops be moving when they struck the ground?.

The time taken for you to cover the same distance on the walkway is 26.6 seconds.

The relative velocity of an object in motion is defined as the velocity of an object with respect to another observer.

The time taken for you to travel the same distance on the walkway with the given speed is calculated as follows;

Assuming you in the same direction as the walkway;

(Va + Vb)t = d

where;

Your speed on the ground is calculated as follows;

Vb = 90 m / 70 s

Vb = 1.286 m/s

Substitute the given parameters and solve for the time taken,

(2.1 m/s + 1.286 m/s)t = 90

(3.386)t = 90

t = 90/3.386

t = 26.6 seconds

Thus, we can conclude that if you maintain your speed on ground, it will take less time to travel the walkway.

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Answer:

Paper, clothing, fuel, cans, and jewelry

Explanation:

Answer:

90

Explanation:

cause

Answer:

.1 seconds per meter

Explanation:

I am going to assume they are asking for the average time per 1 meter.

Because it took 10.23 seconds to run 100 meters, we are going to divide 10.23 by 100. This number will be the time per 1 meter.

To divide by 100, we will move the decimal point over by two. That will give us .1023 seconds.

The question asks to round to the nearest tenth, so we round it to .1 seconds.

*Just some trivia: Danie van Blerk does in fact have a time of 10.23 seconds. He has the 1073rd best 100 meter dash time. First place, Usain Bolt, has a time of 9.58 seconds.

The given amplifier circuit is a common-source amplifier. The equivalent circuit diagram of the amplifier includes a MOSFET N5486 transistor. We can determine the drain current (ID) and drain-source voltage (VDS) using the following equations:

1. Voltage at the source terminal (VS) is calculated using Ohm's law: VS = IS x RS.2. The drain current (ID) can be calculated using the equation ID = IS (1 + GVin), where Vin is the input voltage, G is the voltage gain, and IS is the current flowing through RD.Let's calculate the values of ID and VDS:

Given:- IS = VDD / RD = 10V / 10Ω = 1A- Vin = -1V / (1.5 x 10^6Ω + 0.47μF) = -0.6666667μA (using voltage divider rule)- G = -RD / RS = -10Ω / 3kΩ = -0.003333 Calculating ID:ID = 1A (1 - 0.003333 x 0.6666667 x 10^6)≈ 0.997A = 997mACalculating VDS:VDS = VDD - IDRD= 10V - 997mA x 10Ω≈ 10V - 9.97V≈ 0.03VTherefore, the values of ID and VDS are approximately ID = 997mA and VDS ≈ 0.03V, respectively.

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Answer:.....................

solar panels

Answer:

1 & 2

Explanation:

Answer:

Z=49,A=113

N=64,Z=49

Explanation:

Answer:

Current in the circuit(I) = 0.5 ampere

Explanation:

Given:

Number of resistors = 2 (10 ohm each)

Series of resistors

EMF = 10 volt

Find:

Current in the circuit(I)

Computation:

Total resistance in series = R1 + R2

Total resistance in series = 10 + 10

Total resistance in series = 20 ohm

Current in the circuit(I) = EMF / Total resistance in series

Current in the circuit(I) = 10 / 20

Current in the circuit(I) = 0.5 ampere

Answer:

360 degrees is one full rotation starting at zero

it take 2 s  to the flag to rotate once in a full circle  with 3 rad/s of angular velocity.

Angular velocity is "rate of change of angular displacement with respect to time". i.e. ω= dθ/dt. it is also defined as angular displacement over time. i.e. ω = angular displacement/Time.

Angular velocity shows how much angle can be covered in unit time. It's SI unit rad/s.

Angular acceleration is rate of change of Angular velocity with respect to time.

i.e. α = dω/dt if an object changes its angular velocity in short time, we can say that it has greater angular acceleration. It is expressed in rad/s².

In this problem we have to calculate time, but the angular velocity id not given.

Consider the angular velocity is 3 rad/s.

Given,

Angular displacement θ = 2π

angular velocity ω = 3 rad/s

Time t = ?

Time = θ/ω

Time = 2π/3 rad/s = 2 s

Hence the answer is 2s.

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By applying the pascal's law, the force that needs to be applied to a 5.0 cm diameter piston is 520 N

According to Pascal’s Law in fluid mechanics pressure applied to an enclosed fluid will be transmitted without a change in magnitude to every point of the fluid and to the walls of the container. The pressure at any point in the fluid is equal in all directions.

P = F/A

Where: P = pressure; F = force; A = area of contact

In this case, we are given that:

Force of vehicle (F)= 13,000 N

Area with 25 cm diameter piston (A) = 3.14x (0.125)² = 0.0490625

Thus, the pressure by vehicle = F/A

                                                  = 13,000 / 0.0490625

                                                  = 264,968.153

Area with 5 cm diameter piston (A) = 3.14 x (0.025)² = 0.0019625

According to Pascal’s Law that pressure applied to an enclosed fluid will be transmitted without a change, so we can assume that:

F/0.0019625 = 26,968.153

F = 520 N

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A photon with an energy equal to this negligible kinetic energy would also have a very low energy.

At low particle speeds, the kinetic energy of an electron is given by the equation

KE = 1/2 mv^2, where m is the mass of the electron and v is its speed.

However, as the speed of the electron approaches the speed of light (c), relativistic effects become significant.

The relativistic equation for the kinetic energy of a particle is

KE = (γ - 1)mc^2, where γ is the Lorentz factor given by

γ = 1/√(1 - (v^2/c^2)).

At low speeds, v is much smaller than c, so the term v^2/c^2 is negligible.

Thus, γ is approximately equal to 1, and the kinetic energy equation reduces to KE = (1 - 1)mc^2 = 0.

In other words, at low speeds, the kinetic energy of an electron is effectively zero. Therefore, a photon with an energy equal to this negligible kinetic energy would also have a very low energy.

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Answer:

3.91 s

Explanation:

From the question,

The height of the helicopter is given as

h = 3t²......................... Equation 1

After 5 seconds, The height of the helicopter is given as

h = 3(5²)

h = 3×25

h = 75 m.

Note: The small mailbag falls under gravity.

Hence,

h = ut + 1/2(gt²)....................... Equation 2

Where u = initial velocity of the mailbag, t = time, h = height, g = acceleration due to gravity of the mail bag.

Given: h = 75 m, u = 0 m/s ( at the maximum height).

Constant: g = 9.8 m/s²

Substitute these values into equation 2

75 = 0(t) +1/2(9.8t²)

solve for t

1/2(9.8t²) = 75

4.9t² = 75

t² = 75/4.9

t² = 15.31

t = \(\sqrt{15.31}\)

t = 3.91 s

The kinetic energy of the ball the instant it hits the floor is 100J.

Energy is a unit used to describe how much work a body can perform. It cannot be created or gotten rid of. Energy comes in a variety of forms, including thermal, electrical, nuclear, electrical fusion, and electrical. Energy has the capacity to take on different forms.

The ball's potential energy when it is on a shelf is 100 J.

The ball's potential energy from gravity begins to transform into kinetic energy as it begins to fall. Additionally, as the ball falls, its kinetic energy will rise and its potential energy will fall.

The ball's potential energy due to gravity is completely transformed into kinetic energy when it strikes the ground.

Therefore, the ball has 100 J of kinetic energy when it strikes the ground.

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The current in a 12V circuit if the resistance is 20ohms is 0.6A.

Current (I) is the amount of electric charge flowing in each unit of time. It is measured in amperes (A).

The current passing through a circuit can be calculated using the following formula:

I = V/R

Where;

According to this question, a 12V circuit has a resistance is 20 ohms. The current is calculated thus;

I = 12V ÷ 20ohms = 0.6A.

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The correct option is A. The source of information could be biased.

The scientist's conclusion is most likely unreliable because the sample used for the investigation is not representative or diverse enough to draw a generalized conclusion about the beliefs of the entire population.

Interviewing only 50 people who work in the local oil mine introduces a potential bias, as those individuals may have a vested interest in downplaying the impact of the mine on bird population decline.

Additionally, the sample size is relatively small, which reduces the statistical reliability of the conclusion.

To obtain a more accurate and reliable conclusion, a larger and more diverse sample should be used, including individuals from various backgrounds and perspectives, along with other data collection methods such as field surveys or scientific studies.

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This question involves the concept of magnification.

The distance to the magnified image will be "24 cm".

The magnification of the magnifying glass is given by the following formula:

\(M=\frac{q}{p}\\\\q=Mp\)

where,

Therefore,

q = (4)(6 cm)

q = 24 cm

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Explanation:

Catastrophism is a geological concept or ideology that was formerly in place. It suggests that the earth crust has evolved through only drastic and violent geological events.

Uniformitarianism suggests that the earth carefully evolved over a period of time and that the processes that are occurring today have occurred in times past.

Saturn is the following planet or moon, and its atmosphere is primarily made of hydrogen with a small amount of methane.

The correct answer is B

The planet Saturn is incredibly large and its rings make it incredibly gorgeous. Amazing moons as Titan reside there as well. The Solar System's Saturn is arguably the most popular and stunning planet. Compared to the rings of other planets, Saturn's are much larger and easier to see.

Then, only a year ago, researchers found a second Earth-like planet around Proxima Centauri, one of our nearest nearby stars. The best option we now have for maintaining human life is this planet.

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The torque acting on the dipole is 12x1\(0^{-3}\) or 1.2x1\(0^{-2}\), so the correct option is (C). 12×1\(0^{-3}\).

Electric dipole:The electric dipole is formed by two equal and opposite charges separated by a certain distance. The direction of the electric dipole is in the direction of the vector from the negative charge to the positive charge.Electric dipole moment.The electric dipole moment of an electric dipole is a vector quantity that describes the separation between the two equal but opposite charges, denoted by "q."

Torque:Torque is a vector quantity that describes the amount of twisting or rotating force that an object experiences. Torque is usually represented by the letter "T" and is measured in units of Newton-meters (N-m).Formula:The formula for torque is given as:

T = Fd sinθ

Where,T is the torque, F is the force applied, d is the distance from the axis of rotation and θ is the angle between the applied force and the line of the axis of rotation.

According to the question,Electric dipole moment, P = qd = 2x1\(0^{-6}\) C x 0.03 m = 6 x 1\(0^{-8}\) C

Torque acting on the dipole, τ = P x E x sinθ = (6 x 1\(0^{-8}\) C) x (2 x 10\(^{5} NC^{-1}\)) x sin90° = 12x1\(0^{-3}\) Nm

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A market value of a good or service means current price of a good or service.

option D.

Market value is the price of commodity or materials, such as an asset that's determined by the supply and demand of the asset in the marketplace.

The economic value represents the maximum amount a customer is willing to pay for something.

Also, market value is the highest price that a willing buyer will pay for a good or service and the lowest price at which a willing seller will sell his or her services.

So from the given options we can see that a market value of a good or service means current price of a good or service.

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Answer:

True

Explanation:

Velocity is a vector quantity, which means that it carries both magnitude and direction. Hence when direction of a particle changes, although magnitude (speed) may remain same, it's velocity changes due to direction change. For ex. A particle is m... A particle is moving along x axis with speed 1m/s, it's velocity will be represented as 1i (i represents unit vector along x)

But if it now starts moving along y axis, it's velocity is 1j (j represents unit vector along y axis). Hence velocity changes with direction.

brainllest pls .

Answer:

none of the answers are correct

Explanation:

Lithium = 3

Berillium = 4

Boron = 5

Carbon = 6

Answer:

26m/s²

Explanation:

Given parameters:

Mass of the student  = 60kg

Weight  = 1560N

Unknown:

Acceleration due to gravity  = ?

Solution:

Weight is a force on a body due to gravity;

  Weight  = mass x gravity

Insert the given parameters and solve;

    1560  = 60 x gravity

    Gravity  = \(\frac{1560}{60}\)   = 26m/s²

The partial pressure of helium in the scuba tank is 2803 Pa, and the total pressure in the scuba tank is 13544 Pa. Partial pressure of a gas is the pressure that the gas would exert if it were present alone in the same container. The total pressure in the tank is the sum of the partial pressures of all the gases in the tank.

The partial pressure of each gas can be calculated using the ideal gas law, which relates the pressure, volume, amount, and temperature of a gas. The ideal gas law is given by PV = nRT,

where P is the pressure, V is the volume, n is the amount (in moles), R is the gas constant, and T is the temperature (in Kelvin).

The gas constant R has the value of 8.314 J/(mol K).

Given that 114 L of oxygen and 30.0 L of helium at STP (273.15 K and 1.00 bar) are pumped into a scuba tank with a volume of 9.6 L.

At STP, 1 mole of any gas occupies 22.4 L of volume.

Therefore, the number of moles of oxygen present in the scuba tank is equal to the number of moles of helium present in the scuba tank.

The number of moles of oxygen is equal to 114/22.4 = 5.09 moles.

The number of moles of helium is equal to 30.0/22.4 = 1.34 moles.

The total number of moles of gas present in the scuba tank is equal to 5.09 + 1.34 = 6.43 moles.

The temperature of the scuba tank is given to be 25 degrees Celsius.

To convert this temperature to Kelvin, we add 273.15 to get 298.15 K.

Using the ideal gas law, we can calculate the partial pressure of each gas in the scuba tank as follows:

Partial pressure of oxygen = (nRT/V)O2 = (5.09 mol)(8.314 J/(mol K))(298.15 K)/(9.6 L) = 10741 Pa

Partial pressure of helium = (nRT/V)

He = (1.34 mol)(8.314 J/(mol K))(298.15 K)/(9.6 L)

= 2803 Pa

The total pressure in the scuba tank is the sum of the partial pressures of oxygen and helium.

Total pressure = partial pressure of oxygen + partial pressure of helium

= 10741 Pa + 2803 Pa = 13544 Pa.

Therefore, the partial pressure of oxygen in the scuba tank is 10741 Pa, the partial pressure of helium in the scuba tank is 2803 Pa, and the total pressure in the scuba tank is 13544 Pa.

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Answer:

A

Explanation:

The order of size from smallest to largest of the five terrestrial worlds is Moon, Mercury, Venus, Mars, and Earth.  

Moon: The Moon is the smallest of the terrestrial worlds, with a diameter of 3,476 km. Mercury: Mercury has a diameter of 4,879 km, making it slightly larger than the Moon. Venus: Venus is the third largest terrestrial world, with a diameter of 12,104 km.

Mars: Mars is the fourth largest terrestrial world, with a diameter of 6,779 km.  Earth: Earth is the largest terrestrial world, with a diameter of 12,742 km. In conclusion, The order of size from smallest to largest of the five terrestrial worlds is Moon, Mercury, Venus, Mars, and Earth.  

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True. The interaction between an antigen and its corresponding antibody is highly specific.

This is due to the unique shape and chemical properties of each antigen, which allows it to only bind to a specific complementary region on its corresponding antibody. This specificity is crucial in the immune response, as it allows the body to distinguish between self and non-self molecules. When a foreign antigen enters the body, the immune system produces antibodies that specifically recognize and bind to that antigen, marking it for destruction. This targeted response helps to eliminate the foreign invader while minimizing damage to the body's own cells and tissues. Additionally, the specificity of the antigen-antibody interaction is exploited in various laboratory techniques, such as ELISA and Western blotting, for the detection and quantification of specific molecules in biological samples.


An antibody, also known as an immunoglobulin, is a protein produced by the immune system in response to a specific antigen. Antibodies have unique binding sites, which are complementary in shape and chemical properties to the epitopes on the antigen. This precise fit ensures that a certain antibody can only recognize and bind to a specific antigen, forming an antigen-antibody complex. This selective recognition is crucial for the immune system to effectively target and neutralize foreign invaders while minimizing damage to the host's own cells.

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Answer:

I need a picture dude or something more specific than the other kids were white gold and blue

Momentum is a product of the mass and velocity of particles in motion while impulse is the rate of change of the momentum of particles/objects when a force acts on the object.

The impulse of the collision in system A is twice the impulse of the collision in system B

Impulse is given as J = F.dt

In case of impulse 1,

it is F(1-0.5) = 4* 0.5 = 2 Ns

In case of impulse 2,

it is = 2(2.5 - 1.5) = 2Ns

We saw that, both the impulses are calculated to be 2Ns.

Therefore, both the impulses in the graph are same.

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