Physics, 17.10.2019 01:30 isamar7342
Acart is attached to a string and the other end of the string is attached to a weight that is free to fall. the cart is initially released from rest, and travels a distance of 0.521 m m before hitting a stopper. the cart's final speed was 0.931 m/s . the inertia of the weight is 0.115 kg , while the inertia of the cart is 1.000 kg . for the next 4 parts consider a system of the earth, the weight, the cart, the string, and the track. assume the track does not move relative to the earth.1- what is the final speed of the weight? 2- what is the change in kinetic energy of the system? 3- what is the change in potential energy of the system? 4- what is the change in thermal energy of the system due to friction?
Answers: 3
Physics, 22.06.2019 06:20
Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
Physics, 22.06.2019 14:20
The energy released by a nuclear fusion reaction is produced when
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Physics, 22.06.2019 19:40
Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.
Answers: 2
Physics, 22.06.2019 19:40
12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.
Answers: 2
Acart is attached to a string and the other end of the string is attached to a weight that is free t...
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