To solve the problem we will require the concept of Force as a definition of pressure and Area, and the concept of light pressure itself determined by the relationship between intensity and the speed at which light travels. We will match the terms and find the desired force value,
Here,
P = Pressure
A = Area
Pressure due to the light of the sun will be
Here,
I = Intensity
c = Speed velocity
Equation both therms we have that
We have a circular area then
Replacing with our values (Adding the radius of the Earth)
Therefore the Force on Earth due to radiation pressure is
In my opinion, I believe it’s A(lever)
The work done by Sarah is 3000 J
Explanation:
The work done by Sarah in climbing the set of stairs up is equal to its change in gravitational potential energy, and it is given by:
where:
F is Sarah's weight
d is the vertical distance covered by Sarah
In this problem, we have:
F = 500 N is Sarah's weight
d = 6 m is the vertical distance covered by Sarah
Substituting, we find the work done:
Learn more about work:
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Answer:
b. cannot be effectively tested
Explanation:
Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.