In the demolition of an old building, a 1,300 kg wrecking ball hits the building at 1.07 m/s2. Calculate the amount of force at which the wrecking ball strikes the building.

A 72 kg skydiver can be modeled as a rectangular "box" with dimensions 21 cm * 41 cm * 170 cm. if he falls feet first, his drag coefficient is 0.80. part a what is his terminal speed if he falls feet first? use ρ = 1.

Find two words in a vocabulary list that descirbe the bending of a wave

A moderate force will break an egg. However, an egg droppedon the road usually breaks while one dropped on the grass usuallydoesnt break. THis is because the egg dropped on thegrass ... ? A. has a greater change in momentum B.

An insoluble solid material that is produced in double replacement reactions is called

You walk 60m east and then 20m at 20 degrees south of west. What is your displacement?

What type of change occurs when water changes from solid to a liquid

Definition of artficial and natural radioactivity

In order for an object to conserve it's total mechanical energy it is absolutely necessary that?

Your body is presently converting chemical potential energy from food into thermal energy at a rate of about 100 J/s, or 100 W. If heat were flowing out of you at a rate of about 200 W, would your body temperature go up or down?

Which energy depends the arbitrarily assigned zero level