Both equinoxes ... September 21 and March 21.
They use x-rays to diagnose broken bones
Answer:
B . energy cannot be created or destroyed
Answer:
sorry but which class your talking 'bout
P = m*v
conservation of momentum suggests
initial momentum equals final momentum
mv-initial = mv-final
(0.0010 kg)(50 m/s) = (0.0010 kg + 0.35 kg)v
thus:
v = (0.0010)(50)/(0.351) = 0.142 m/s
