A catcher "gives" with the ball when he catches a 0.155 kg base ball moving at 27.4 m/s. If he moves his hand 7.84 cm, what is the average force acting on his hand? answer in units of kN.

Which governments provide garbage collection services to homes and businesses

Which radioisotope is used in dating geological formations?

The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?