Answer:
1000 mph
Explanation:
P = Perimeter = 24000 mi
r = Radius of the equator
t = Time taken to complete one rotation = 24 h
Perimeter of a circle is given by
Angular speed is given by
Velocity if given by
The person would be going at a speed of 1000 mph
Because glass is not a good heat conductor. What it means is that heat isn't transfered through its structure as quickly as it would with metal, for instance. Because heat can't penetrate glass as quickly, the contents stay at the same temperature for longer.
Answer:
Explanation:
Velocity of Top most point of wheel is twice the Velocity of centre of mass of wheel
Thus angular velocity is given by
First, let's calculate the frequency of this radiation, which is given by:
where c is the speed of light and
is the photon wavelength. For this radiation, photons have wavelength of
Therefore their frequency is
The energy of a photon with frequency f is given by
where h is the Planck constant. By using the frequency we found before, we find the energy of a single photon of this radiation: