potential is equal to mgh
we know that mass = 1220 kg
g=9.8 0r 10
400=1220*9.8*x
400=11956x
x=400/11956
Answer:
Transmission of telephone signals
Explanation:
Fiber optics are used for the transmission of telephone signals.
Answer:
v=4m/s
Explanation:
The formulas for accelerated motion are:
We can derive the formula 
from them.
We have:
And substitute:
Where in the first step of the last row we just multiplied everything by 2a. Since 
is the displacement d, we have proved that
We use then our values to calculate the final velocity when starting from rest, traveling a distance 0.002m with acceleration 
:
Answer:
and a dumb person would say "what's the question" or "I don't get it"
The formula for potential energy would be PE = mgh
Where: m is the mass; g is the acceleration due to gravity, and h would be height.
So plugging in the data:
PE = 150kg × 9.8 m/s^2 × 10m
= 14700 Joules would be the potential energy for this problem.
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