Low voltage power system: you want to "supercharge"1 your brand new tesla model 3 at a rate of 100 kw at home. for safety reasons, you chose a 5 v direct current (dc) voltage source. a) calculate the required current. b) assuming a cylindrical conductor with a current density of 10 a/mm2 , what diameter conductor would you need? c) assuming copper with a resistivity of rhocu = 1.67×10−8 ωm and a cable length

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

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)