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mihalych1998 [28]
3 years ago
13

An airplane propeller is rotating at 1900 rpm (rev/min).

Physics
1 answer:
alexandr1967 [171]3 years ago
3 0

Answer:

See explanation

Explanation:

We have to convert to angular velocity in rads-1 as follows;

Angular velocity in rad/s = 2π/60 × 1900 rpm = 199 rad/s

Given that

angular velocity =angle turned /time taken

Time taken = angle turned/angular velocity

Converting 35° to radians we have;

35 × π/180 = 0.61 radians

Time taken = 0.61 radians/199 rad/s

Time taken = 0.0031 seconds

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valentina_108 [34]


work is distance * force so 15*100=1500

and to find time you know power = diastance * force / time

so 25=15*100/t

25=1500/t

25/1500=t

.016=time


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3 years ago
A helicopter blade spins at exactly 110 revolutions per minute. Its tip is 4.50 m from the center of rotation. (a) Calculate th
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Answer:

(a). The average speed is 51.83 m/s.

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Explanation:

Given that,

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(b). The average velocity over one revolution is zero because the net displacement is zero in one revolution.

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(b). The average velocity over one revolution is zero.

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diminished and erect( upright)

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