Author Question: A 0.500-kg ball traveling horizontally on a frictionless surface approaches a very massive stone at ... (Read 108 times)

corkyiscool3328 · **on:** Jul 29, 2018

A 0.500-kg ball traveling horizontally on a frictionless surface approaches a very massive stone at 20.0 m/s perpendicular to wall and rebounds with 70.0 of its initial kinetic energy. What is the magnitude of the change in momentum of the stone?

A) 18.4 kgm/s
B) 14.0 kgm/s
C) 3.00 kgm/s
D) 1.63 kgm/s
E) 0.000 kgm/s

Question 2

What is the temperature of 3.0 moles of gas at a pressure of 250 kPa held in a volume of 15 L?

A) 150 K
B) 200 K
C) 250 K
D) 300 K
E) 350 K