Correct answer only ! i cannot retake this and i need all correct answers !
the purpos...
Physics, 28.10.2019 22:31 Byanka032801
Correct answer only ! i cannot retake this and i need all correct answers !
the purpose of a cell (battery) is to:
Answers: 3
Physics, 22.06.2019 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Physics, 22.06.2019 15:30
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
Physics, 22.06.2019 23:00
Which scientist was the first to propose the heliocentric model of the universe? a. aristotle b. isaac newton c. galileo galilei d. nicolaus copernicus
Answers: 1
Physics, 23.06.2019 00:00
What is the difference between mass density and weight density?
Answers: 1
Mathematics, 17.04.2020 03:56
Mathematics, 17.04.2020 03:56
History, 17.04.2020 03:56
History, 17.04.2020 03:56
Chemistry, 17.04.2020 03:56