Physics, 27.03.2020 05:13 princessakosua2
A block of mass 2 kg slides down ramp 1 with a height of 3 m. It then slides for 1 m on a surface with a kinetic coefficient of friction of 0.4. Next the block slides up a frictionless ramp 2. What is the potential Energy of the block at the top of Ramp 1
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, 22.06.2019 12:40
Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)
Answers: 1
Physics, 22.06.2019 15:40
If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false
Answers: 2
Physics, 22.06.2019 18:50
What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.
Answers: 2
A block of mass 2 kg slides down ramp 1 with a height of 3 m. It then slides for 1 m on a surface wi...
Chemistry, 29.10.2020 01:40
Social Studies, 29.10.2020 01:40
Mathematics, 29.10.2020 01:40
History, 29.10.2020 01:40
Computers and Technology, 29.10.2020 01:40
English, 29.10.2020 01:40
Spanish, 29.10.2020 01:40
Mathematics, 29.10.2020 01:40
Mathematics, 29.10.2020 01:40
Mathematics, 29.10.2020 01:40
Physics, 29.10.2020 01:40
Chemistry, 29.10.2020 01:40
Mathematics, 29.10.2020 01:40
Mathematics, 29.10.2020 01:40
Mathematics, 29.10.2020 01:40
Geography, 29.10.2020 01:40