Answers: 3
Physics, 21.06.2019 22:00
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) .
Answers: 1
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 10:00
Which atomic model was proposed as a result of j. j. thomson’s work?
Answers: 1
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
you have a concave spherical mirror with a 11.7 cm radius of curvature. you place an object on the m...
Health, 08.12.2020 23:30
Health, 08.12.2020 23:30
Health, 08.12.2020 23:30
Biology, 08.12.2020 23:30
Physics, 08.12.2020 23:30
Arts, 08.12.2020 23:30
Mathematics, 08.12.2020 23:30
Mathematics, 08.12.2020 23:30
English, 08.12.2020 23:30
Mathematics, 08.12.2020 23:30
Mathematics, 08.12.2020 23:30
Physics, 08.12.2020 23:30
Computers and Technology, 08.12.2020 23:30
Mathematics, 08.12.2020 23:30
Health, 08.12.2020 23:30