To solve this problem it is necessary to apply the concepts based on Newton's second law and the Centripetal Force.
That is to say,
Where,
Centripetal Force
Weight Force
Expanding the terms we have to,
Where,
r = Radius
g = Gravity
v = Velocity
Replacing with our values we have
Therefore the minimum speed must the car traverse the loop so that the rider does not fall out while upside down at the top is 10.75m/s
Answer:
the oscillations of the electrons must be in the 10⁸ Hz = 100 MHz range
Explanation:
The speed of a wave of radio, television, light, heat, all are manifestations of electromagnetic waves that are oscillations of electric and magnetic fields that support each other, the speed of all these waves is the same and the vacuum is equal to c = 3 108 m / s
All waves have a relationship between the speed of the wave, its frequency and wavelength
c = λ f
f = c /λ
for this case lam = 1 m
f = 3 10⁸/1
f = 3 10⁸ Hz
the oscillations of the electrons must be in the MHz range
It should be clarified that the speed of light in air is a little lower
n = c / v
v = c / n
the refractive index of vacuum is n = 1 and the refractive index of air is n = 1.000002
Yes it is, even though the water is underground, it can still be evaporated. Large amounts of water are stored in the ground. The water is still moving, possibly very slowly, and it is still part of the water cycle. Most of the water in the ground comes from precipitation that infiltrates downward from the land surface.
You have the correct formula. Work = F d .
You use it by gathering up 'F' and 'd' and throwing away everything else.
F = 599.79 N
d = 153 cm
That's all you need to calculate 'W' with your formula. Just because they
also gave you the mass and the time doesn't mean you MUST use them.
My guess is that there are more parts to this problem where you may need
the mass and the time. For example, if they ask you for the power, then
you'll need to divide the work by the time.
