Aswimming pool measures 5.0 m long x 4.0 m wide x 3.0 mdeep.
compute the force exerted by the water against a) thebottom; b)
either end. (hint: calculate the force on athin,
horizontal strip at a depth h, and integratethis over the
end of the pool.) do not include the force due to
airpressure.

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great. d) about 10 times as great.

What does the law of conservation of mass state?