Physics, 17.10.2019 04:00 ethanhose05
A12,000 kg railroad car is traveling at 2 m/s when it strikes another 10,000 kg railroad car that is at rest. if the cars lock together, what is the final speed of the two
Answers: 2
Physics, 21.06.2019 17:20
If the force on an object is in the negative direction, the work it does on the object must be [2 points a) negative. b) positive c) the work could be either positive or negative, depending on the direction the object moves
Answers: 1
Physics, 22.06.2019 07:30
Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear
Answers: 2
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
Physics, 22.06.2019 18:00
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)
Answers: 3
A12,000 kg railroad car is traveling at 2 m/s when it strikes another 10,000 kg railroad car that is...
Mathematics, 26.08.2021 18:00
Geography, 26.08.2021 18:00
Mathematics, 26.08.2021 18:00
Biology, 26.08.2021 18:00
Social Studies, 26.08.2021 18:00
Biology, 26.08.2021 18:00
English, 26.08.2021 18:00
Mathematics, 26.08.2021 18:00
Mathematics, 26.08.2021 18:00