Abilliard ball with a mass of 0.15 kg has a velocity of 5 m/s. it strikes the bumper of the table perpendicularly and bounces straight back with a velocity of 3 m/s. the ball underwent a change in momentum equal to

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Athird point charge q3 is now positioned halfway between q1 and q2. the net force on q2 now has a magnitude of f2,net = 5.861 n and points away from q1 and q3. what is the value (sign and magnitude) of the charge q3?

If a rock is thrown upward on the planet mars with a velocity of 10 mys, its height in meters t seconds later is given by y − 10t 2 1.86t 2 . (a) find the average velocity over the given time intervals: (i) [1, 2] (ii) [1, 1.5] (iii) [1, 1.1] (iv) [1, 1.01] (v) [1, 1.001] (b) estimate the instantaneous velocity when t − 1.