Avisible disturbance propagates around a crowded soccer stadium when fans, section by section, jump up and then sit back down. what type of wave is this?
a) spherical wave
b) polarized wave
c) polarized spherical wave
d) longitudinal wave
e) transverse wave

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?