Answer:
E = 73.5 J
Explanation:
Given that,
Mass of a marble, m = 5 kg
It is placed at the edge of a 1.5 m table
We need of find the gravitational potential energy of the marble. It is given by the formula as follows :
E = mgh
E = 5 kg × 9.8 m/s² × 1.5 m
E = 73.5 J
So, the potential energy of the marble is 73.5 J.
The energy found in one photon of visible light if the wavelength is 589 nm is, 3.37*10^-19J.
To find the answer, we have to know more about the energy of photon.
<h3>What is the energy of photon?</h3>
- We have the expression of energy of photon as,
where, c is the speed of light and h is the plank's constant.
- It is given in question that, the wavelength is 589 nm.
- Thus, the energy will be,
Thus, we can conclude that, the energy found in one photon of visible light if the wavelength is 589 nm is 3.37*10^-19J.
Learn more about the energy of photon here:
brainly.com/question/3584036
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