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tia_tia [17]
2 years ago
9

Помогите пожалуйста дам 25 баллов

Physics
1 answer:
zheka24 [161]2 years ago
6 0

Answer:

rong subject

Explanation:

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Can an argon atom undergo vibrational motion?
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1. A ball is launched horizontally at 40 m/s while 6.0 m above a level field . How far will the ball move horizontally before st
Tresset [83]

Answer:

44 m

Explanation:

Given that,

Horizontal velocity of the ball, u = 40 m/s

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We need to find the distance covered by the ball when move horizontally before striking the ground. Let it is d.

Firstly, we will find time taken for the ball to hit the ground. Using second equation of motion as follows :

s=ut+\dfrac{1}{2}at^2

Put u = 0 and a = g

s=\dfrac{1}{2}gt^2\\\\t=\sqrt{\dfrac{2s}{g}} \\\\t=\sqrt{\dfrac{2\times 6}{9.8}} \\\\t=1.1\ s

No finding the horizontal distance as follows :

d = ut

d = 40 m/s × 1.1 s

d = 44 m

So, the ball will move 44 m horizontally before striking the ground.

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What is rotation?
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C.) spinning of an object on its axis :)
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Read 2 more answers
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