The gas entering a rocket nozzle has a stagnation pressure of 1500 kpa and a stagnation temperature of 3000 °c. the rocket is traveling in the still standard atmosphere at 30,000 m. find the throat and exit area for a flow rate of 10 kg/s. assume k = 1.35, r = 287.0 n ∙ m/kg ∙ k. the gas is perfectly, expanded to the ambient pressure.

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!