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kolbaska11 [484]
3 years ago
6

Please help!How is constant or uniform acceleration used to explain free fall?

Physics
1 answer:
garik1379 [7]3 years ago
4 0
Free fall is a special case of motion with constant acceleration, because acceleration due to gravity is always constant and downward. For example, when a ball is thrown up in the air, the ball's velocity is initially upward.
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Aquifers are an example of which two are spheres interacting?
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<h2>Answer::</h2>

Humans (biosphere) built a dam out of rock materials (geosphere). Water in the lake (hydrosphere) seeps into the cliff walls behind the dam, becoming groundwater (geosphere), or evaporating into the air (atmosphere).','.

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The energy from the movement of electrons through the electron transport chain is directly used to synthesize atp.
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False

Explanation:

This statement is false

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Your physics teacher is giving you a special gift a box of mass 20 kg with a mystery surpise insie .the box is placed on a frict
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Answer:

F = 196.2 N

Explanation:

Use Newtons law

F = m * a

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On a horizontal, linear track lies a cart that has a fan attached to it. The mass of the cart plus fan is 364 g. The cart is pos
mamaluj [8]

Answer:

6.62s

Explanation:

Metric unit conversion:

364 g = 0.364 kg

789 g = 0.789 kg

Starting from rest, the cart takes 4.49 s to travel a distance of 1.43 m. We can use the following equation of motion to calculate the constant acceleration

s = a_1t_1^2/2

a_1 = \frac{2s}{t_1^2} = \frac{2*1.43}{4.49^2} = 0.142 m/s^2

Using Newton's 2nd law, we can calculate the force generated by the fan to push the 0.364 kg cart forward

F = a_1m_1 = 0.142*0.364 = 0.052 N

Now that more mass is added, the new acceleration of the 0.789 kg cart is

a_2 = F/m_2 = 0.052 / 0.789 = 0.065 m/s^2

We can reuse the same equation of motion to calculate the time it takes to travel 1.43 m from rest

s = a_2t_2^2/2

t_2^2 = 2s/a_2 = 2*1.43/0.065 = 43.7

t_2 = \sqrt{43.7} = 6.62s

6 0
4 years ago
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