Which of the following must be happening if an object is in uniform circular motion?
O A. The object's centripetal acceleration must be changing.
B. The object's speed must be changing.
C. The object's velocity must be changing.
D. The object must be moving in a straight line.
SUBMIT

Which force is most responsible for binding together an atom's protons and neutrons? electrostatic gravitational nuclear magnetic

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.