How does the flexible foam lining inside a bicycle helmet change the outcome of a collision so as to reduce the risk of head injury for a rider?
B. by transmitting the force away from the rider's head
C. by increasing the time over which force is exerted on the rider
D. by reducing the amount of the rider's mass on which the force acts
A. by reducing the rider's change in velocity

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

What is one real world example of a colligative property?