Question 7 of 10 What type of system would allow light and air to enter and exit?
A. Connected
B. Open
C. Isolated
D. Closed

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

What object a collides with object b and bounces back its final momentum is?

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?