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3 years ago

9

a 7 kilogram cat is resting on top of a bookshelf that is 2 meters high. what is the cat’s gravitational potential energy relati

ve to the floor? joules

2 answers:

viva [34]3 years ago

7 0

Answer:

The cat’s gravitational potential energy relative to the floor is 137.2 Joules.

Explanation:

Given that,

Mass of cat = 7 kg

Height of bookshelf = 2 m

The gravitational potential energy :

The gravitational potential energy is the product of the mass of the object, gravity and height of the object from the ground.

The gravitational potential energy relative to the floor is

$P.E = mgh-0$

$P.E = 7\times9.8\times2-0$

$P.E=137.2\ J$

Hence, The cat’s gravitational potential energy relative to the floor is 137.2 Joules.

attashe74 [19]3 years ago

5 0

PE = mgh
Mass, m = 7kg, g ≈ 10 m/s², height = 2m

= 7*10*2

= 140 Joules.

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3 years ago

A 12.0 μF capacitor is charged to a potential of 50.0 V and then discharged through a 265 Ω resistor. A)How long does the capaci

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(a) The time for the capacitor to loose half its charge is 2.2 ms.

(b) The time for the capacitor to loose half its energy is 1.59 ms.

<h3>Time taken to loose half of its charge</h3>

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0.5 = e-^(t/RC)

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<h3>Time taken to loose half of its stored energy</h3>

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t = 1.59 x 10⁻³ s

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What is Aeronautical Science?

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3 years ago

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Answer:

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