A 4kg block sitting on the floor, how much potential energy does it have?

Answers

Answer 1

Answer:
Well, there you have a very important principle wrapped up in that question.

There's actually no such thing as a real, actual amount of potential energy.
There's only potential relative to some place. It's the work you have to do
to lift the object from that reference place to wherever it is now. It's also
the kinetic energy the object would have if it fell down to the reference place
from where it is now.

Here's the formula for potential energy: PE = (mass) x (gravity) x (height) .

So naturally, when you use that formula, you need to decide "height above what ?"

If you're reading a book while you're flying in a passenger jet, the book's PE is
(M x G x 0 meters) relative to your lap, (M x G x 1 meter) relative to the floor of the
plane, (M x G x 10,000 meters) relative to the ground, and maybe (M x G x 25,000 meters)
relative to the bottom of the ocean.

Let's say that gravity is 9.8 m/s² .

Then a 4kg block sitting on the floor has (39.2 x 0 meters) PE relative to the floor
it's sitting on, also (39.2 x 3 meters) relative to the floor that's one floor downstairs,
also (39.2 x 30 meters) relative to 10 floors downstairs, and if it's on the top floor of
the Amoco/Aon Center in Chicago, maybe (39.2 x 345 meters) relative to the floor
in the coffee shop that's off the lobby on the ground floor.

Answer 2

Answer: P.E.=mgh

P.E.= mass×gravity×height, therefore 4kg×10×0= 0 J

K.E. is also equal to 0 because the block is not moving, is in the state of Inertia

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What is a time paradox?

Answers

Hey There Wolfie,

What is a time paradox?

A temporal paradox, time paradox, or time travel paradox is aparadox, an apparent contradiction, or a logical contradiction that is associated with the idea of time and time travel. Temporal paradoxesfall into two broad groups: consistency paradoxes exemplified by the grandfather paradox; and causal loops

kyle is holding a nag of 250 jelly beans. when mark takes out two jellybeans, kyle is not able to tell a difference. this illustrates

Answers

This illustrates Kyle's inability to accurately sense the weight of the nag.

b.) absolute threshold

Lightning strikes 16,090 meters away from you.How long does it take the sound of thunder to get to you at 20°C temperature?

with solution and formula<3

Answers

Final answer:

It takes approximately 47 seconds for the sound of thunder to reach you at 20°C temperature.

Explanation:

The time it takes for the sound of thunder to reach you can be determined using the formula:

Time = Distance / Speed

Sound travels at a speed of approximately 343 meters per second at 20°C. Therefore, to calculate the time it takes for the sound to reach you, divide the distance by the speed:

Time = 16,090 meters / 343 meters per second

Time = 46.97 seconds

So, it takes approximately 47 seconds for the sound of thunder to reach you at 20°C temperature.

Learn more about Time for sound of thunder to reach you here:

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a tuna fish is streamlined to reduce friction which describes the type of of friction the fish must overcome

Answers

A tuna fish is streamlined to reduce friction which describes the type of of friction the fish must overcome drag force. Drag force affects the fall of a tuna fish because the area of a body has an increase in surface area and hinders the flow of the molecules around it thus increasing the drag force.

Which of the following statements about iron filings placed upon glass resting on top of a bar magnet is false? A. The density of the filings will match the intensity of the magnetic field. ield outlined by the filings will be from the north pole of the magnet to the south pole. C. The filings will be clustered more densely where the field is weakest. D. The filings will sit on the glass on curved paths between the north and south poles.

Answers

The correct answer for the question that is being presented above is this one: " C. The filings will be clustered more densely where the field is weakest." The statement about iron filings placed upon glass resting on top of a bar magnet that is false is that the filings will be clustered more densely where the field is weakest.

Correct answer choice is:

C. The filings will be clustered more densely where the field is weakest.

Explanation:

The closer mutually the field lines will be the more powerful the field would be present. The field is really powerful in the axis of the magnet, though as they are frequently accommodated in the magnet itself, the field is quite weak in the air close to the axis. As the field lines make rings, they have to penetrate in one spot and drop at different, the two poles must be extremely close mutually indeed in the air, and the field is consequently stronger. These points are the North and the south poles.

organisims that have a physical trait that makes it easier for them o access food supply are unlikely to pass on that trait to their offsprings

Answers

The answer then is false, if it has a trait that will help it survive in its environment then it will pass on the trait to its offspring.

Answer: FALSE

Explanation:

EGDE 2021

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