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3 years ago

The earth's gravity is pulling on you. Are you pulling on the earth? Explain why or why not.

Physics

1 answer:

mel-nik [20]3 years ago

7 0

Answer:

"we both attract each other with the same force but we know that attraction between two bodies depends upon their mass, greater the mass of two bodies is the force of attraction between them"(got this off the internet).

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Name at least 4 things our atmosphere dose for us

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3 years ago

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A rock weighs 30 n on earth and another rock weighs 30 n on the moon. which rock has the greater mass?

wlad13 [49]

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3 years ago

A person makes a cup of coffee by first placing a 200 W electric immersion heater in 0.32 kg

alexdok [17]

Answer:

Answer is D. 8.04 x 10^4 J

Explanation:

1. D

2. A

3. D

4. B

5. C

6. B

7. D

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3 years ago

How does the interstellar medium affect our view of most of the galaxy?

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3 years ago

It is well known that for a hollow, cylindrical shell rolling without slipping on a horizontal surface, half of the total kineti

miskamm [114]

<u>The fraction of the total kinetic energy that is rotational for a uniform sphere is</u><u> 1/3.</u>

<h3>What is kinetic energy?</h3>

Kinetic energy is a form of energy that an object or a particle has by reason of its motion.
If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy.

Option (a) $f = \frac{0.5}{1.5} = \frac{1}{3}$

Option (b) uniform sphere

$f = \frac{2}{7}$

C) uniform hollow sphere

$f = \frac{2}{5}$

D) uniform hollow cylinder with inner radius R/2 and outer radius R

$f = \frac{5}{13}$

that fraction of total energy as rotational energy is given as

$f = \frac{\frac{1}{2}Iw^{2} }{\frac{1}{2}mv^{2} + \frac{1}{2} Iw^{2} }$

$f = \frac{m k^{2}(\frac{v^{2} }{R^{2} }) }{mv^{2} + m k^{2}(\frac{v^{2} }{R^{2} } )}$

$f = \frac{\frac{k^{2} }{R^{2} } }{1 + \frac{k^{2} }{R^{2} } }$

A) uniform Solid cylinder for cylinder we know that

$\frac{k\\ ^{2} }{R^{2} }$ = 0.5

$f = \frac{0.5}{1.5} = \frac{1}{3}$

B) uniform Sphere for sphere we know that

$\frac{k^{2} }{R^{2} } = \frac{2}{5} \\$

$f = \frac{0.4}{1.4} = \frac{2}{7}$

C) uniform hollow sphere for hollow sphere we know that

$\frac{k^{2} }{R^{2} } = \frac{2}{3}$

$f = \frac{\frac{2}{3} }{\frac{5}{3} } = \frac{2}{5}$

D) uniform hollow cylinder with inner radius R/2 and outer radius R for annular cylinder

$\frac{k^{2} }{R^{2} } = \frac{5}{8}$

$f = \frac{\frac{5}{18} }{\frac{13}{8} } = \frac{5}{13}$

Learn more about kinetic energy

brainly.com/question/999862

#SPJ4

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<u>The complete question is -</u>

It is well known that for a hollow, cylindrical shell rolling without slipping on a horizontal surface, half of the total kinetic energy is translational and half is rotational. What fraction of the total kinetic energy is rotational for the following objects rolling without slipping on a horizontal surface?Part AA uniform solid cylinder.Part BA uniform sphere.Part CA thin-walled hollow sphere.Part DA hollow, cylinder with outer radius R and inner radius R/2.

4 0

2 years ago