Two identical cars collide head on. Each car is traveling at 100 km/h. The impact force on each car is the same as hitting a solid wall at:

(a) 100 km/h

(b) 200 km/h

(c) 150 km/h

(d) 50 km/h

Based on this activity, is kinetic energy always transformed into potential energy?

An airplane flying horizontally at a constant speed of 350 km/h over level ground releases a bundle of food supplies. Ignore the effect of the air on the bundle. What is the bundle's initial vertical velocity?

How does the valence of the element relate to its chemical activity?

when an object is moving there is always a force pulling it in the direction of its motion? true or false? explain

A sports car accelerates from rest to 26m/s in 4.3s. What is the acceleration of the vehicle

Which part of the ear vibrates at the frequency of sound waves

A submarine that is in the sea what principle is that

1. It takes 26.5 N to pull a 72 kg sled across snow. What is the coefficient of friction? 2. A 565 N rightward force pulls a large box across the floor with a constant velocity of 0.75 m/s. If the coefficient of friction is 0.

A person holds onto an object for 2 minutes, but doesn't move the object. Is work done on the object?

Which two vectors add together to give a resultant with the smallest magnitude, and which two vectors add to give a resultant with the largest magnitude? in each case specify the magnitude and direction of the resultant?