Answer:
wavelength = 497.03 × m
Explanation:
given data
diffraction grating = 5 314
separated = 0.488 m
distance = 1.78 m
to find out
wavelength of the laser light
solution
we first find here angle of the first maximum with the center that is
a =
a = 15.33°
and
grating distance will be =
grating distance g = 1.88 × m
so now equation for the wavelength will be
wavelength = g ×
here n = 1
wavelength = g ×
wavelength = 1.88 × ×
wavelength = 497.03 × m
According to KE = (3/2)kT
reducing temperature, in KELVIN, by half, average KE is reduced by half.
Answer:
bar one:constant acceleration
bar two:remains stationary
bar three:constant acceleration
Potential energy = mgh
So, energy gained
= mgh
= 70kg × (9.8m/s²) × 1000m
= 686000 kgm²/s²
= 686000 J
Answer:
<u>Work</u>, in physics, refers to the measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.