A toy train engine rests motionless on a track. One student begins pushing the engine to the right with a force of 2 newtons. At the same time, another student begins to push the engine to the left with a force of 5 newtons. Which of the following best describes the motion of the engine?
a
It travels left at a constant speed.
b
It travels left at an increasing speed.
c
It travels right at a constant speed.
d
It travels right at an increasing speed.
Answers: 3
Physics, 22.06.2019 06:30, robertrkumar1
At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid
Answers: 2
Physics, 23.06.2019 00:10, looloo273
An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b. what is the wavelength of the wave? c. what is the amplitude of the magnetic field? d. what is the intensity of the wave?
Answers: 3
A toy train engine rests motionless on a track. One student begins pushing the engine to the right w...
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