3 years ago

What is the difference between kinetic energy and potential energy

Physics

1 answer:

uranmaximum [27]3 years ago

8 0

Answer:

Kinetic energy is the energy of a moving body while potential energy is the energy by vutue of it's position

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An object is placed to the left of a convex mirror, such that the object-to-image distance is 140 cm.

labwork [276]

Answer:

The focal length of the mirror is 52.5 cm.

Explanation:

Given that,

Object to Image distance d = 140 cm

Image distance v= 35 cm

We need to calculate the object distance

$u = d-v$

$u = 140-35=105\ cm$

We need to calculate the focal length

Using formula of mirror

$\dfrac{1}{f}=\dfrac{1}{u}+\dfrac{1}{v}$

Put the value into the formula

$\dfrac{1}{f}=\dfrac{1}{-105}+\dfrac{1}{35}$

$\dfrac{1}{f}=\dfrac{2}{105}$

$f=52.5\ cm$

Hence, The focal length of the mirror is 52.5 cm.

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3 years ago

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From that particular list:

Mica (A), Quartz (B), and Copper (D) are minerals.

Steam (C) isn't.

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3 years ago

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seropon [69]

Answer:

I would say there is friction against the floor, air resistance, and gravity.

Explanation:

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3 years ago

Suppose you are conducting an experiment concerning gravity's effects on falling objects, and you want to minimize air resistanc

Vladimir79 [104]

Answer: C) Conduct the experiment in a vacuum.

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3 years ago

How long in seconds will it take a car traveling at 100 miles/hour to travel the length of an American Football field?

Mrrafil [7]

Answer:

It will take 2.45 seconds.

Explanation:

A football field measured 120 yards, that is arround 0.068 miles, the car is moving with a constant speed so the formula we have to apply for this is:

$t=\frac{x}{v}\\where\\x=distance\\v=speed\\$

$t=\frac{0.068}{100}\\t=0.00068hrs$

in order to obtain the time in seconds:

$tsec=0.00068hr*(\frac{3600sec}{1hr} )\\tsec=2.45 sec$

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3 years ago

What is the difference between kinetic energy and potential energy​

What is the difference between kinetic energy and potential energy