To understand Newton's law of gravitation and the distinction between inertial and gravitational masses. Two particles are separated by a certain distance. The force of gravitational interaction between them is F0. Now the separation between the particles is tripled. Find the new force of gravitational interaction F1.
Express your answer in terms of F0.
F1=

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)