A windmill for generating electricity has a blade that is 30 feet long. Depending on the wind, it rotates at various velocities. Find the angular velocity in rad/sec for the tip of the blade if the windmill is rotating at a rate of 55 comma 145 rev/day.

The angular velocity is 0.40090415 rad/sec.

Explanation:

Given that,

Height = 30 feet

Rotating rate =55,145 rev/day

We need to calculate the angular velocity

So,

Hence, The angular velocity is 0.40090415 rad/sec.

b would be the answer

this means that the temperature of both substances will be equal