Answer:
Below is the calculation of all the required quantities. From the calculations, Vx must change, the velocity before hitting the ground must change and the angles also must change.
Explanation:
Below is an attachment that contains the calculation steps.
Thank you for reading.
Answer:
The charge stored is 
The energy stored is
Explanation:
From the question we are told that
The area of the plates is
The separation between the plate is 
The potential difference is 
The permitivity of free space is 
The dielectric constant of glass is K = 5.0
Generally the capacitance of this capacitor is

substituting values


The charge stored is mathematically evaluated as

substituting values


The energy stored is

substituting values


By testing it out. Try it.
Answer:
<h2>98 J</h2>
Explanation:
The potential energy of a body can be found by using the formula
PE = 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
PE = 5 × 9.8 × 2
We have the final answer as
<h3>98 J</h3>
Hope this helps you