Physics, 17.03.2020 04:32, dogwisperer101
A sports car moves around a banked curve at just the right constant speed vv so that no friction is needed to make the turn. During the turn, the driver (mass mm) feels as though she weighs xx times her actual weight. Find the magnitude of the net force on the driver during the turn in terms of mm, gg, and xx.
Answers: 3
Physics, 22.06.2019 18:00, maren17
Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)
Answers: 3
Physics, 22.06.2019 21:10, reinasuarez964
Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. intensity c. wavelength d. brightness
Answers: 2
A sports car moves around a banked curve at just the right constant speed vv so that no friction is...