The weight of a block on the inclined plane is 500 n and the angle of incline is 30 degrees. what is the magnitude of the force of friction for static equilibrium? what is the normal force of the surface pushing up on the block?

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2