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Kobotan [32]
3 years ago
13

Using an example, explain how small atoms are.

Physics
1 answer:
Aliun [14]3 years ago
4 0
Unlike a ball, an atom doesn't have a fixed radius. The radius of an atom can only be found by measuring the distance between the nuclei of two touching atoms, and then halving that distance... Does that answer your question?
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Which of the following has the strongest magnetic field? Earth, the Sun, Jupiter, a pulsar
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A pulsar has the strongest magnetic field
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3 years ago
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A 0.25 kg book falls off a 2 m shelf on to a 0.5 m chair. What was the change in GPE?
Snowcat [4.5K]

The equation of GPE is mgH, where m is mass, g is gravitational acceleration, and H is the height.

If we're solving for the change in GPE, then:

∆U_{g} = mg∆H

<u>Input our given values for m and g:</u>

∆U_{g} = 0.25 * 9.80 * ∆H

<u>The book falls from 2 meters high to 0.5 meters high, so:</u>

∆U_{g} = 0.25 * 9.80 * (2.0 - 0.5)

∆U_{g} = 0.25 * 9.80 * 1.5

∆U_{g} = 3.675 (J)

<u>Adjust for significant figures:</u>

∆U_{g} = 3.7 (J)

The change in gravitational potential energy was 3.7 (J)

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6 0
3 years ago
What’s the voltage of a battery in a circuit with resistance of 3 ohms and current of 5 amps?
alexira [117]

Answer: The correct answer is-15 Volts.

Explanation-

Voltage of a battery can be defined as the difference in electric potential that lies between the positive and negative terminals of a battery.

It can be calculated using Ohm's law, which states that the electric potential difference between two points on a circuit is equal to the product of the current that flows between the two points (I) and the total resistance that sis present between the two points. It can be mathematically depicted as-

ΔV = I • R  

Putting the value of 'I' and 'R', we get-

ΔV = 5 X 3

    =  15 V

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2 years ago
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What is the medium the energy in the slinky wave travels through?
vlabodo [156]

Answer:

The metal coil of the slinky

Explanation:

The wave travels on the actual slinky which we see deforming as the wave goes through.

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