why is the chemical energy of a battery potential energy and not kinetic energy?

Answers

Answer 1

Answer: The energy is 'stored' in the battery. The energy in the battery is able to start a motion and by doing so transfering to kinetic energy, nut the chemical energy in the battery isn't 'stored' in movement.

Answer 2

Answer:
Kinetic energy is simply the energy of something in motion,
and the battery is just sitting there, even if it's fully charged.

A fully charged battery has the potential to cause heating,
light, an electric current, or the motion of something like
a motor or the clapper of a bell. What kind of energy it
produces depends on how you use it. You might use it
to produce kinetic energy, and you might not. Until you
connect it to something, its energy stays inside, in the
form of chemical energy, and nothing is moving yet.

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A Carnot heat engine has an efficiency of 0.400. If it operates between a deep lake with a constant temperature of 298.0k and a hot reservoir, what is the temperature of the hot reservoir?

Answers

Answer:

496.7 K

Explanation:

The efficiency of a Carnot engine is given by the equation:

$\eta = 1 - (T_H)/(T_L)$

where:

$T_H$ is the temperature of the hot reservoir

$T_C$ is the temperature of the cold reservoir

For the engine in the problem, we know that

$\eta = 0.400$ is the efficiency

$T_C = 298.0 K$ is the temperature of the cold reservoir

Solving for $T_H$ , we find:

$(T_C)/(T_H)=1-\eta\nT_H = (T_C)/(1-\eta) =(298.0)/(1-0.400)=496.7 K$

What is a substance that when mixed with water turns blue litmus paper red

Answers

when blue litmus paper is dipped in acid the paper turns red.

hope this helps :)

suppose a single light bulb burns out. How do you think this will affect light that are strung along a single wire

Answers

All of the other lights will go out. This is an example of a series circuit.

Hope this helps! (:

-TotoandFidoLOVE

well if a light burns out you change the bulb

A 2.00x10^6 hertz radio signal is sent a distance of 7.30x10^10 meters from earth to a spaceship orbiting Mars. How much time does it take for the radio signal to travel from earth to the spaceship

Answers

Answer:

It takes $2.43* 10^2$ for the radio signal to travel from earth to the spaceship.

Explanation:

Given:

The frequency of the radio signal = $2.00 * 10^6$ hertz

Distance = $7.30* 10^10$ meters

To Find:

The time taken for the radio signal to travel from the earth to the spaceship= ?

Solution:

we know that the time taken can be found by dividing the distance travelled by the speed at which the signal travels

$Time = (Distance)/(Speed)$

Here the speed of the radio signal is equal the the speed of light

Now substituting the values,

Time taken is

=> $Time = (7.30* 10^10)/(3 * 10^8)$

=> $Time = 2.43* 10^(10-8)$

=> $Time = 2.43* 10^2$

The time taken for the 2×10⁶ Hz radio signal to get to the spaceship from Earth is 243.33 s

What is speed?

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

Speed = distance / time

How to determine the time

Speed of radio signal = 3×10⁸ m/s
Distance = 7.3×10¹⁰ m
Time =?

speed = distance / time

3×10⁸ = 7.3×10¹⁰ / time

Cross multiply

3×10⁸ × time = 7.3×10¹⁰

Divide both sides by 3×10⁸

Time = 7.3×10¹⁰ / 3×10⁸

Time = 243.33 s

Learn more about speed:

brainly.com/question/680492

#SPJ5

Find the value of 15.0 Newton in pounds

Answers

1 Newton is equal to 0.22480894 pounds (force)

So you must multiply the magnitude of 15 Newtons by this conversion value to obtain the equivalent magnitude in units of pounds (force):

(15 N)*(0.22480894 N/lbf) = 3.37 lbf rounded to the nearest hundredth

15.0 Newton ≈ 3.37 pounds

How does air and water affect a nail?

Answers

Well for starters...... Air particles are all around. They try to attach to pretty much everything. ( If you know what I mean ) Next water is hard to make it stick with just water..... So you could say to use a chemical to make it fully stick to the actual nail itself. I hoped that this helped.

I think that it is the oxygen in the air and in the water that affects the nail because most nails are made of iron and oxygen+Iron= Oxidation which is rust.

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