Answer:
The thickness of the hair is 4.0764x10^-5 m
Explanation:
2t=mL (L is wavelength)
2t = 129x632 (124 is used because m starts at 0)
2t = 81528
t = 40764
t = 4.0764x10^-5 m
If a phase shift occur, then we use;
2t = (m + 1/2)L and
2t = (129 + 1/2)632
2t = 81844
t = 40922
t = 4.0922x10^-5 m
The answers are almost the same.
When sulphur burns it turns to sulphur dioxide
Sea breezes occur during hot, summer days because of the unequal heating rates of land and water. During the day, the land surface heats up faster than the water surface. ... As the warm air over the land is rising, the cooler air over the ocean is flowing over the land surface to replace the rising warm air.
Answer:
C. greater than D, but less than 2D
Explanation:
The amount of potential energy in the system is a function of the compression of the spring. That is the same for both masses.
The potential energy is transferred to kinetic energy when the spring is released. The kinetic energy is jointly proportional to the mass and the square of the velocity. That is, the velocity is inversely proportional to the square root of the mass, for the same kinetic energy.
The horizontal distance traveled will be proportional to the launch velocity. So a halving of the mass will increase the velocity by a factor of ...
v2 = v1·√(1/(1/2)) = v1·√2
This means the second mass will land at a distance of about D√2, a value ...
greater than D but less than 2D.
Explanation:
...Is this a fill in the blank question? If you wanted the time to travel a distance and knew velocity, you could divide said distance by velocity to get the time.
Time = Distance/Velocity