Physics, 30.07.2019 03:30 SmartKitty
In a practical machine, the power output is smaller than the power input. considering the law of energy conservation, what can explain this occurrence? a. some of the energy going into the machine is being destroyed. b. some of the energy coming out of the machine is being destroyed. c. some of the energy is used to combat friction, and thus is transformed from mechanical energy to heat. d. some of the energy going into the machine is being created at a quicker rate than the energy coming out is being destroyed.
Answers: 2
Physics, 22.06.2019 06:30
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
Answers: 2
Physics, 22.06.2019 10:30
If y gets smaller as x gets bigger and y have an relationship?
Answers: 1
Physics, 22.06.2019 14:30
Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity
Answers: 3
In a practical machine, the power output is smaller than the power input. considering the law of ene...
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