An astronaut travels to the moon. what is true regarding her mass and weight? a) her mass and weight are greater on earth. b) her mass and weight are the same on the moon as on earth. c) her mass is the same on the moon and earth, but her weight is greater on earth. eliminate d) her weight is the same on the moon and earth, but her mass is greater on earth.

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