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mylen [45]
3 years ago
7

The force of gravity is an inverse square law. this means that, if you double the distance between two large masses, the gravita

tional force between them __________.
Physics
1 answer:
likoan [24]3 years ago
4 0
F~1/r²
doubling the distance r, Decreases the force by ¼
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What is the difference between a negative feedback system and a positive feedback system?
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Answer:

D

Explanation:

The negative feedback is responsible for maintaining equilibrium (stability) in a system as it lessens effects, which is contrary to positive feedback which increases reaction and moves a system further away from equilibrium (stability), It does so by amplifying the effects of a product or event and occurs when something needs to happen quickly. e.g

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The song Arirang is an example of korean F_L_ _O N_​
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Which of the following is true about producers?
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A $100 cart is moving down an inclined plane at 1.30 m/s. The cart collides with a stationary object and rebounds with a speed o
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Answer:

0.65  kg*m/s and 0.165 kg*m/s

Explanation:

Step one:

given data

mass m= 0.5kg

initial velolcity u=1.3m/s

final velocity v= 0.97m/s

Required

The change in momentum

Step two:

We know that the expression for impulse is given as

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substitute

Pt= 0.5*(1.3-0.97)

Pt= 0.5*0.33

Pt=0.165 kg*m/s

7 0
2 years ago
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