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3 years ago

What causes streams to flow downhill

Physics

2 answers:

Vedmedyk [2.9K]3 years ago

8 0

Answer:

A. Gravity

Explanation:

allochka39001 [22]3 years ago

4 0

Answer:

A. gravity

Explanation:

Gravity has an affect on the flow of a river because it is going downhill. Since it is going downhill, it will reach an ocean or sea through gravity.

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A cart, which has a mass of m - 2.50 kg, is sitting at the top of an inclined plane which is 3.30 meters long and which meets th

SashulF [63]

Answer:

Part(i) the time taken for this cart to reach the bottom of the inclined plane is 1.457 s

Part(ii) the velocity of the cart when it reaches the bottom of the inclined plane is 4.531 m/s

Part(iii) the kinetic energy of the cart when it reaches the bottom of the inclined plane is 25.663 J

Explanation:

Given;

mass of the cart = 2.5 kg

angle of inclination, β = 18.5⁰

length of inclined plane = 3.3m

Part(i) the time taken for this cart to reach the bottom of the inclined plane

s = ut + ¹/₂×at²

initial vertical velocity, u = 0

s = 3.3 m

s = ¹/₂×at²

$t = \sqrt{\frac{2s}{a} }$

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Part(ii) the velocity of the cart when it reaches the bottom of the inclined plane

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Part(iii) the kinetic energy of the cart when it reaches the bottom of the inclined plane

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