Which of the following statements is true? a. when a hang fire or misfire happens, immediately eject the cartridge or shell to clear the chamber. b.magnum loads should be fired occasionally in all firearms to clean out the barrel. c.never carry more than one caliber or gauge of ammunition at the same time. d.a hang fire is when the primer fails to ignite the powder.

How will each of the following changes in demand and/or supply affect equilibrium price and equilibrium quantity in a competitive market; that is, do price and quantity increase or decrease, or are the answers indeterminate because they depend on the magnitudes of the shifts?

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.