Answer:
500 nm
Explanation:
In this problem, we have a diffraction pattern created by light passing through a diffraction grating.
The formula to find a maximum in the pattern produced by a diffraction grating is the following:

where:
d is the distance between the lines in the grating
is the angle at which the maximum is located
m is the order of the maximum
is the wavelength of the light used
In this problem we have:
is the angle at which is located the 2nd-order bright line, which is the 2nd maximum
n = 5000 lines/cm is the number of lines per centimetre, so the distance between two lines is

Re-arranging the equation for
, we find the wavelength of the light used:

Answer:
because the mass of the apple is very less compared to the mass of earth. Due to less mass the apple cannot produce noticable acceleration in the earth but the earth which has more mass produces noticable acceleration in the apple. thus we can see apple falling on towards the earth but we cannot see earth moving towards the apple.
I would go with the third option because it seems logical. He had a big imagination and was very creative. Hope I helped
ytyjjryjtjtyjtyjtyyjetyeyjetyyjeytjtyjetyjtjetyjetyeyjetyj
Answer:
Velocity = 94.85m/s
Explanation:
<u>Given the following data ;</u>
Height = 1200m
Vertical distance = 1050m
To find the time, we would use the second equation of motion;

Substituting into the equation, we have;

t = 11.07 secs
To find the velocity;
Mathematically, velocity is given by the equation;

Substituting into the above equation;

Velocity = 94.85m/s
Therefore, the velocity of the water above 1050 m over the sea level is 94.85m/s.