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Jobisdone [24]
3 years ago
13

PLEASE HELP ME WITH THIS. IT'S DUE IN 15 MINUTES

Physics
1 answer:
astra-53 [7]3 years ago
4 0

Answer:

you can measure the speed of sound in the air by using "SPEED=DISTANCE÷TIME

Explanation:

the SPEED of the sound in metres per second, DIVIDE the DISTANCE in metres by the AVERAGE TIME in seconds.

*

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A uniform disk has a mass of 3.7 kg and a radius of 0.40 m. The disk is mounted on frictionless bearings and is used as a turnta
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Answer:

1.25 kgm²/sec

Explanation:

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Ekd = 0.148 * 9.87

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Final angular speed =

ω² = Ekd/(Jc+1/2*Jd)

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ω² = 1.4607/0.74

ω² = 1.974

ω = √1.974

ω = 1.405 rad/sec

Final angular momentum =

L = (Jd+Jc) * ω

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