When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition?
a. stable factors
b. frictional force
c. a balanced set of forces
d. unbalanced forces

In a system, when potential energy decreases, then entropy also decreases. true false

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

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth