Answers: 2
Physics, 22.06.2019 01:00, jayycruz59
An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75
Answers: 2
Physics, 22.06.2019 04:30, AShevel6767
In a system, when potential energy decreases, then entropy also decreases. true false
Answers: 3
Physics, 22.06.2019 18:00, maren17
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
Through which one of the following mediums is the velocity of a sound wave the greatest?
a. w...
a. w...
Mathematics, 10.04.2021 21:00
English, 10.04.2021 21:00
Mathematics, 10.04.2021 21:00
Computers and Technology, 10.04.2021 21:00
Mathematics, 10.04.2021 21:00
Chemistry, 10.04.2021 21:00
Mathematics, 10.04.2021 21:00