Answer:
<h2>4.9 J</h2>
Explanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
GPE = 10 × 9.8 × 0.05
We have the final answer as
<h3>4.9 J</h3>
Hope this helps you
Answer:
advantages of using renewable energy resource
it is safer and cleaner
it does not produces green house gas and has 0 carbon emission
for producing electricity we use solar and wind power that does not harm the environment
advantages of using non renewable energy resource
they are abundant
they are affordable
easy to use
they are easily accessible and compatible
easy to store
You don't need to do any calculations, you are already given that n=1.5
n is index of refraction. it's 1.5
1.the sun must be lined up with the moon and earth all must be aligned for this to happen