Answers: 1
Physics, 21.06.2019 15:30
A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision
Answers: 3
Physics, 21.06.2019 23:00
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
Physics, 21.06.2019 23:50
The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory
Answers: 2
What is the heat required to raise the temperature of ice
form - 10 degree celsius to its melting p...
Mathematics, 21.04.2021 02:50
Mathematics, 21.04.2021 02:50
Mathematics, 21.04.2021 02:50
Computers and Technology, 21.04.2021 02:50
History, 21.04.2021 02:50
Health, 21.04.2021 02:50
Mathematics, 21.04.2021 02:50
Mathematics, 21.04.2021 02:50
Mathematics, 21.04.2021 02:50
Biology, 21.04.2021 02:50
Mathematics, 21.04.2021 02:50