What force (in n) does a trampoline have to apply to a 46.0 kg gymnast to accelerate her straight up at 5.30 m/s2? note that the answer is independent of the velocity of the gymnast—she can be moving either up or down, or be stationary. (enter the magnitude.)

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

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.

Which radioisotope is used in dating geological formations?