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mafiozo [28]
2 years ago
14

Why is damage from sound waves is an issue on the launchpad but not in the air

Physics
1 answer:
elixir [45]2 years ago
6 0
Because it is if you know you know and it is also helping the sentwcnde and air and confiscation
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What is the unit of measurement of velocity
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Usually the unit of measurement of velocity is meters per second or m/s

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A rollerblader is blading along the sidewalk. Which forms of measurement would be the best to use to determine the rollerblader'
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2 years ago
A cart of mass m = 0.12 kg moves with a speed v = 0.45 m/s on a frictionless air track and collides with an identical cart that
lina2011 [118]

Answer:

0.006075Joules

Explanation:

The final kinetic energy of the system is expressed as;

KE = 1/2(m1+m2)v²

m1 and m2 are the masses of the two bodies

v is the final velocity of the bodies after collision

get the final velocity using the law of conservation of momentum

m1u1 + m2u2 = (m1+m2)v

0.12(0.45) + 0/12(0) = (0.12+0.12)v

0.054 = 0.24v

v = 0.054/0.24

v = 0.225m/s

Get the final kinetic energy;

KE = 1/2(m1+m2)v

KE = 1/2(0.12+0.12)(0.225)²

KE = 1/2(0.24)(0.050625)

KE = 0.12*0.050625

KE = 0.006075Joules

Hence the final kinetic energy of the system is 0.006075Joules

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Calculate the force of an object that has a mass of 10kg and an acceleration of 4m/s²
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The answer is A-40N.
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When did galileo discover projectile motion?
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