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Andrew [12]
3 years ago
8

Physics 1 Course. please help. ​

Physics
1 answer:
Aleks [24]3 years ago
6 0

Answer:

a. 1.64 m/s²

Explanation:

Centripetal acceleration is the square of tangential velocity divided by the radius.

a = v²/r

First, convert km/h to m/s.

30.0 km/h (1000 m/km) (1 h / 3600 s) = 8.33 m/s

Find the acceleration.

a = (8.33 m/s)² / (42.4 m)

a = 1.64 m/s²

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If you wanted to discover the youngest stars you could find in some grouping of stars in the Galaxy, which type of star group wo
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Three children are riding on the edge of a merry-go-round that is 100 kg, has a 1.60-m radius, and is spinning at 20.0 rpm. The
Kay [80]

Answer:

25.33 rpm

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M = 100 kg

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Let the new angular speed in rpm is f'.

According to the law of conservation of angular momentum, when no external torque is applied, then the angular momentum of the system remains constant.

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(1/2 x M x r^2 + m1 x r^2 + m2 x r^2 + m3 x r^2) x ω =

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8 0
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