Physics, 30.01.2020 11:51 nickkungu92
According to newton’s second law of motion, an object accelerates in the same direction as the force applied to it.
true false
Answers: 3
Physics, 22.06.2019 12:10
Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)
Answers: 1
Physics, 22.06.2019 12:50
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
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 20:00
Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?
Answers: 1
According to newton’s second law of motion, an object accelerates in the same direction as the force...
Social Studies, 22.05.2020 09:01
Mathematics, 22.05.2020 09:01
Mathematics, 22.05.2020 09:01
History, 22.05.2020 09:01
Mathematics, 22.05.2020 09:01
English, 22.05.2020 09:01