Acentrifuge is a common laboratory instrument that separates components of differing densities in solution. this is accomplished by spinning a sample around in a circle with a large angular speed. suppose that after a centrifuge in a medical laboratory is turned off, it continues to rotate with a constant angular deceleration for 10.0s before coming to rest.

a. if its initial angular speed was 3890rpm , what is the magnitude of its angular deceleration?

b. how many revolutions did the centrifuge complete after being turned off?

What is a carrier wave and how does it affect what you hear on the radio

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?

Which change would make the diagram correct?