A144-g baseball moving 26 m/s strikes a stationary 5.25-kg brick resting on small rollers so it moves without significant friction. after hitting the brick, the baseball bounces straight back, and the brick moves forward at 1.05 m/s
(a) what is the baseball spped after the collision?
(b) find the total kinetic energy before and after the collision.

a.

b. ,  

Explanation:

Let the velocity of the ball after collision is v m/s, By the law of momentum conservation:

Solve to vf1

(b)

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hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.