After a large snowstorm, you shovel 2,500 kilograms of snow off of your sidewalk in half an hour. you lift
the shovel to an average height of 1.5 meters while you are piling the snow in your yard.
a. how much work did you do? hint: the force is the weight of the snow.
b. what was your power in watts? hint: you must always convert time to seconds when calculating power.

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).

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)

Can a molecule have bond dipoles but not have a molecular dipole?