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Readme [11.4K]
3 years ago
13

Alice builds another model to describe the movement of the particles of a substance after it changes state due to thermal energy

being added or removed. which of the below claim safely be made using her model​
Physics
1 answer:
sweet-ann [11.9K]3 years ago
4 0

Explanation:

so sorry

don't know but please mark me as brainliest please

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0/2 File Limit
slamgirl [31]

Answer:

Speed at which it will reach the ground is given as

v_f = 46.8 m/s

Total time for which it will remain in air is given as

t = 6.3 s

Explanation:

As we know that the object is projected upwards with speed

v_i = 15 m/s

g = - 9.81 m/s^2

now when it will reach the ground then we have

y = v_y t + \frac{1}{2} at^2

so we have

-100 = 15 t - \frac{1}{2}(-9.81) t^2

4.905 t^2 - 15 t - 100 = 0

so we have

t = 6.3 s

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v_f = v_i + at

v_f = -15 + (9.81)(6.3)

v_f = 46.8 m/s

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Answer:

B=work=power/time

Explanation:

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