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Margarita [4]
3 years ago
8

A student hangs a wood block from a spring. The student pulls the block downwards so the spring is stretched and holds the block

at rest. What type of energy does the wood not have? A. chemical potential energy B. gravitational potential energy C. kinetic energy D. elastic potential energy
Physics
1 answer:
Murrr4er [49]3 years ago
6 0
Kinetic energy because of the wood plank is just still and not moving it’s potential but since it’s asking which one it doesn’t have it doesn’t have kinetic energy cause it’s not moving
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369 kg

Explanation:

Step 1:

We know that the expression for potential energy is

PE = mgh

where, m =Mass

            g = Acceleration due to gravity

            h Height

Step 2:

Here m = ?

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5 0
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garik1379 [7]
 <span>I would solve this problem by starting from the equation for a pendulum's period: 

T ≈ 2π√( L / g ) 

Rearranging for g, and substituting the length in Cambridge: 

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And for Tokyo: 

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