Which situation will produce the greatest change of momentum for a 1.0-kilogram cart? A)
accelerating it from rest to 3.0 m/s
B)
accelerating it from 2.0 m/s to 4.0 m/s
applying a net force of 5.0 N for 2.0 s
C)
D)
applying a net force of 10.0 N for 0.5 s

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.

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