15 POINTS
1 answer:
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Answer:
0.06 A
Explanation:
We have given mass =0.954 kg
velocity =1.27 m/sec
efficiency =0.361 the output kinetic energy of the motor
Efficiency =0.361
so input to the motor = output/efficiency
so input to the motor =
we know that where E is energy and T is time so
We know that power P=VI we have given V=4.5 VOLT
So current
The dispersive power of the material of the prism is independent of the shape, angle of prism or size of the prism. It depends only on the refractive index of the material of the prism.
Answer:
the speed of the nerve impulse in miles per hour is 201.59 mi/hr
Explanation:
Given;
the speed of the nerve impulse, v = 90.1 m/s
To convert this speed in meters per second to miles per hour, we use the following method;
1,609 meter = 1 mile
3,600 s = 1 hour
Therefore, the speed of the nerve impulse in miles per hour is 201.59 mi/hr
(a) 0.99999687c
The relationship between total energy (E) and rest energy () is
where is the relativistic factor. In this problem, we know that the total energy is 400 times the rest energy: this means that
The formula for the relativistic factor is
where v is the speed of the proton and c is the speed of light. By isolating the term v/c, we find the speed of the protons in terms of c:
(b)
Given the rest mass of a proton:
its rest energy is the energy equivalent to this mass:
The protons in the Fermi Laboratory have energy that is 400 times their rest energy, so their total energy is
The total energy is also sum of rest energy and kinetic energy:
So the kinetic energy is
And since the conversion factor is
This kinetic energy converted into MeV () is