Atoy jeep rolls down an incline at a constant velocity. the jeep's mass is m = 1.7 kg and the ramp makes an angle of θ = 12 degrees with respect to the horizontal. assume the rolling resistance is negligible. part (a) what is the magnitude of the jeep's acceleration, a in m/s2? numeric : a numeric value is expected and not an expression. a = part (b) what is the numeric value for the sum of the forces in the x-direction, σfx, in newtons?

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic