What is the maximum velocity of the person, in meters per second, if the amplitude of the bounce is 0.13 cm?

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?