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atroni [7]
3 years ago
7

If the rock was going 90m/s when it hit the ground. How many seconds would it have been falling for?

Physics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

it will hit 80

Explanation:

because evey sec

is 10

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A piston above a liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external
ddd [48]
The weight of the load is (mass) x (gravity)

                               = (350 kg) x (9.8 m/s²)

                               =        3,430 newtons .

The force on the surface of the liquid is the weight of the piston and its load.

The pressure on the surface of the liquid is  (force) / (area) 

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                                                             =  3,430 pascals

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