Please help Which statement comparing the penetrating power of different types of radiation is correct?
A. Gamma radiation is less penetrating than alpha radiation.
B. Alpha radiation is more penetrating than gamma radiation.
C. Alpha radiation is less penetrating than beta radiation.
D. Beta radiation is more penetrating than gamma radiation.

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