Answer:
5 Joules, 7.5 Joules and 10 Joules respectively
Explanation:
Potential energy due to gravity is given by mass*gravity*height or weight*height(As weight= mass*gravity)
The potential energy at the height of 1 meters = 5*1 = 5 Joules
The potential energy at the height of 1.5 meters = 5*1.5 = 7.5 Joules
The potential energy at the height of 2 meters = 5*2 = 10 Joules
You can see yourself in a mirror because light rays<span> bounce off its shiny surface. Light rays come from everything you can see, including yourself. You see things when </span>the light<span>rays from them enter yours eyes. Some of the light rays that come from yourself strike the mirror. The mirror reflects the rays because it is very smooth. The rays come back to your and enter your eyes.</span>
We'll use the formula Solubility = K * P where K is the Henry's constant and P is the pressure in atm.
If 1 bar = 0.9869 atm.
Then 4.5 bar = X atm
X = 4.4410
So Solubility = 58 * 4.4410 = 257.574 M
20 m/s is the answer this is due to displacement over change in time. Thus 200/10=20