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joja [24]
3 years ago
13

What kind of energy transformation occurs when you lite a firecracker

Physics
2 answers:
Cerrena [4.2K]3 years ago
7 0
The answer is chemical energy.
d1i1m1o1n [39]3 years ago
5 0
Friction=Mechanical turn into Thermal
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The triceps muscle in the back of the upper arm extends the forearm. This muscle in a professional boxer exerts a force of 2551
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Answer:

0.7 kg m²

Explanation:

F = force exerted applied by muscle in a professional boxer = 2551 N

r = length of lever arm = 3.15 cm = 0.0315 m

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I = moment of inertia of the boxer's forearm

τ = Torque applied by muscle in a professional boxer

Torque is given as

τ = I α = r F

Inserting the values

I (115) = (0.0315) (2551)

I = 0.7 kg m²

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Pascals = N/m2
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