Answer:
b. sees the bow (front) light flash before the aft (rear) light.
Explanation:
Galactic Explorer is the mission in which we explore about the universe. The spaceship signal has set its bright signal lights off at the end of two ends of the spaceship. The General Kay has concluded that when lights flashed are in her reference frame it will be midpoint of ship. This can happen when Captain Ray, sees bow light flash before aft light at the center of Galactic Explorer.
Answer:Thermal Storage
Concentrating solar plants can capture heat from the sun and store the energy in water, molten salts, or other fluids. This stored energy is later used to generate electricity, enabling the use of solar energy even after sunset.
Explanation: Solar panels use the photons produced by sunlight to generate direct current (DC) electricity. When the photons hit the panel they are absorbed by the panel's semiconducting silicon material. During this process electrons separate from the atoms and move around the solar cell.
Answer:
B
Explanation:
Momentum is the product or multiplication of a body's mass and its speed.
Since all options have the mass and speed in the same units, there is no need for conversion.
A. 20 x 500 = 10000, B. 200 x 60 = 12000
The same goes for the rest!
Answer:
the mass of the space ship would be greater than its mass when at rest, it's mass becomes so high that it reaches infinity.
Explanation:
From Einstein's relativity equation E=, where E is energy, m is mass and C is the speed of light, the equation shows that energy (E) and mass (m) are interchangeable because there are different forms of the same thing if mass is somehow converted into energy (just as in the atomic bomb). This equation shows that mass increases with speed (as an object moves, its mass increases), and if an object were to move close to the speed of light (the fastest speed a particle can move in a vacuum) its mass would increase that in reaches infinity.
Answer:
t = 37 x 10⁻⁶ m
Explanation:
given,
Length of glass plate,L = 9.47 cm
wavelength of the light, λ = 585 nm
Number of bands, n = 127 bands
thickness of the hair, t = ?
When the light get refracted from the inner surface of glass the wavelength of the light does not changes.
But when the light is refracted from the outer surface there is a dark band which shows that the wavelength changes.
now,
For the first order of bright band has phase difference = λ/2
for nth order
p = 2 t
t = 37 x 10⁻⁶ m
Hence the thickness of the hair is equal to t = 37 x 10⁻⁶ m