Im not sure about this one but the one i will go for is a.
Answer:
When a ball thrown upward reaches its highest point, its velocity is? is still -9.8 m/s2. The acceleration due to gravity is always -9.8 m/s/s, regardless of the ball's velocity.
Each ball :
P = m * m/sec
P = 1.0 * 5
P = 5.0 kg.m/sec
in stationary :
P = 1.0 kg * 0.0
P = 0.0 kg.m/sec
hope this helps!
Answer:
i think its B sorry if its wrong
Answer:
D. all atoms with an atomic number over 83