Ineed on physical science; work 1. your family is moving to a new home. while lifting a box 1.5m straight up to put it on a truck, you exert an upward force of 200n. calculate the amount of work you did. a) 133j b) 198.5j c) 201.5j d) 300j

Why is metal often used for cooking pan?

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.