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3 years ago

Help plssssss would be highly appreciate ❤️❤️

Physics

2 answers:

victus00 [196]3 years ago

7 0

Answer:

Explanation:

anastassius [24]3 years ago

4 0

Answer:

I beleive B because its on land and the tecnotic plates are moving opposite directions pulling the ground into a tear like hole

Explanation:

what happen when you take two sides of something and pull opposite directions right it tears the same will happen to the groung.

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Matter is made of small particles to small to be seen. Which of these best describe evidence of this statement? 1. Tara’s crayon

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Answer:

Explanation:

I think the answer is statement no 3.

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If a magnet is broken into two pieces, what happens to the magnetic poles?

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You stand on a bridge above a river and drop a rock into the water below from a height of 25 m. (Assume no air resistance)

Ilia_Sergeevich [38]

PART a)

here when stone is dropped there is only gravitational force on it

so its acceleration is only due to gravity

so we will have

$a = g = 9.8 m/s^2$

Part b)

Now from kinematics equation we will have

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

now we have

y = 25 m

so from above equation

$25 = 0 + \frac{1}{2}(9.8 )t^2$

$t = 2.26 s$

Part c)

If we throw the rock horizontally by speed 20 m/s

then in this case there is no change in the vertical velocity

so it will take same time to reach the water surface as it took initially

So t = 2.26 s

Part D)

Initial speed = 20 m/s

angle of projection = 65 degree

now we have

$v_x = vcos\theta$

$v_x = 20 cos65 = 8.45 m/s$

$v_y = vsin\theta$

$v_y = 20 sin65 = 18.13 m/s$

PART E)

when stone will reach to maximum height then we know that its final speed in y direction becomes zero

so here we can use kinematics in Y direction

$v_f - v_y = at$

$0 - 18.13 = (-9.8) t$

$t = 1.85 s$

so it will take 1.85 s to reach the top

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3 years ago

The flash was running around Central City when he runs into the villain Gorilla Grodd. Gorilla Grodd releases the spring loaded

strojnjashka [21]

PE = 1/2 kx²

mgh = 1/2 kx²

80.9.8.20 = 1/2 k.4²

k = 1960

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2 years ago