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LiRa [457]
2 years ago
14

If a rock weighing 3.5 newtons is resting on cliff's ledge 12 meters from the canyon floor, what is its potential energy?

Physics
1 answer:
podryga [215]2 years ago
6 0

Answer:

42 Joules

Explanation:

Potential energy

= weight × height

= (3.5)(12)

= <u>42 joules</u>

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A) equal to the battery's terminal voltage.

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3 years ago
Solar energy can be changed into thermal energy without any work being done. true or false
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When you drop an object from a certain height, it takes time T to reach the ground with no air resistance. If you dropped it fro
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Answer:

Explanation:

Given

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it takes time T

using equation of motion

h=ut+\frac{1}{2}at^2

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a=acceleration

t=time

here u=0 because it dropped from a certain height

h=\frac{1}{2}gT^2

T=\sqrt{\frac{2h}{g}}

When height is increases to three times of original height

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5 0
3 years ago
A camera lens focuses on an object 75.0 cm from the lensThe image forms 3.50 cm behind the lens. What is the magnification of th
N76 [4]

Answer:

7/150

Explanation:

The following data were obtained from the question:

Object distance (u) = 75cm

Image distance (v) = 3.5cm

Magnification (M) =..?

Magnification is simply defined as:

Magnification (M) = Image distance (v)/ object distance (u)

M = v /u

With the above formula, we can obtain the magnification of the image as follow:

M = v/u

M = 3.5/75

M = 7/150

Therefore, the magnification of the image is 7/150.

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3 years ago
Nature of components of mixture should be known to separate the mixture why?​
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It is important to be able to separate mixtures to obtain a desired component from the mixture and to be able to better understand how each component.

Explanation:

8 0
3 years ago
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