Newtons seconf law states that f=ma(fierce time acceleration). which example would best have the greatest acceleration a) a 10kg ball thrown with a 50 newton force b) a 1kg ball thrown with a 0.5 newton force c). a 50kg student launched by a 100 newton catapult d) a 500 kg car accelerated by 1000 newton’s from the engine
Answers: 2
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 01:10
Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.
Answers: 1
Physics, 22.06.2019 05:00
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
Newtons seconf law states that f=ma(fierce time acceleration). which example would best have the gre...
Mathematics, 17.04.2020 18:22
History, 17.04.2020 18:22
Mathematics, 17.04.2020 18:22
English, 17.04.2020 18:22
Biology, 17.04.2020 18:22
Mathematics, 17.04.2020 18:23
Mathematics, 17.04.2020 18:23