Physics, 05.10.2020 14:01 dawsgreer4302
A kicker on the football field kicked the ball with a velocity of 17.1 m/s at an angle of 40° to the horizontal. How long was the ball in the air?
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 02:00
The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e
Answers: 3
Physics, 22.06.2019 06:40
How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.
Answers: 1
Physics, 22.06.2019 08:30
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
Answers: 3
A kicker on the football field kicked the ball with a velocity of 17.1 m/s at an angle of 40° to the...
Mathematics, 27.04.2021 09:10
Physics, 27.04.2021 09:10
Computers and Technology, 27.04.2021 09:10
Social Studies, 27.04.2021 09:10
Mathematics, 27.04.2021 09:10
Engineering, 27.04.2021 09:10
Mathematics, 27.04.2021 09:10
Mathematics, 27.04.2021 09:10
Chemistry, 27.04.2021 09:10
Geography, 27.04.2021 09:10
English, 27.04.2021 09:10
Mathematics, 27.04.2021 09:10
Mathematics, 27.04.2021 09:10