Which of the following options gives the maximum acceleration? 1) 50 N acting on 8 kg

2) 60 N acting on 9 kg

3) 24 N acting on 4 kg

4) 75 N acting on 12 kg

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

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?