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zmey [24]
3 years ago
9

What force pulls the truck/ramp down towards the track? Group of answer choices

Physics
1 answer:
Effectus [21]3 years ago
8 0

Answer:

B.Gravity

Explanation:

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Keith_Richards [23]

1 milliliter = 1 cubic centimeter (cm^3)

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3 years ago
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A cat jumps from 2.5-meter-tall bookshelf to a 1.3-meter-tall countertop. If the cat
UkoKoshka [18]

The change in Potential energy of the cat is 176.4 J.

<h3 /><h3>Potential Energy:</h3>

This is the energy due to the position of a body. The S.I unit is Joules (J)

The formula for change in potential energy.

<h3 /><h3>Formula:</h3>
  • ΔP.E = mg(H-h).............. Equation 1

<h3>Where:</h3>
  • ΔP.E = Change in potential energy
  • m = mass of the cat
  • g = acceleration due to gravity
  • H = First height
  • h = second height.

From the question,

<h3>Given:</h3>
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  • H = 2.5 m
  • h = 1.3 m
  • g = 9.8 m/s²

Substitute these values into equation 1

  • ΔP.E = 15×9.8(2.5-1.3)
  • ΔP.E = 15×9.8×1.2
  • ΔP.E = 176.4 J.

Hence, The change in Potential energy of the cat is 176.4 J

Learn more about Potential energy here: brainly.com/question/1242059

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2 years ago
A gas occupies a volume of 20 cubic meters at 9,000 pascals. If the pressure is lowered to 5,000 pascals, what volume will the g
forsale [732]
We need to consider no change in the temperature of gas (isothermal transformation)

Volume and pressure are inversely proportional magnitudes, so we can write:

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3 years ago
Match the measurements to the correct number of significant figures.
Shalnov [3]
To calculate the number of sig figs
1.  Count ALL nonzero numbers
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3.  If in a decimal the zero is at the end, count it
4.  In a decimal all the zeros before the first nonzero number are placeholders and don't count them
5.  In a number greater than zero all zeros AFTER the last nonzero number are placeholders and don't count them.

A - 5
B - 2
C - 3
D - 1
E - 4
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3 years ago
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Which of the following is the best explanation for acceleration? *
Anuta_ua [19.1K]

Answer:the rate of change in velocity

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