Answer:
PE = (|accepted value – experimental value| \ accepted value) x 100%
Explanation:
Last One.... If Im not Wrong!
Burning of Fossil Fuels, Increase the CO2 And therefore the Green Effect!!
there here is your answer to your question
Uncertainty in measurements and calculations means difference between actual and measured data. We can say that all measurements have some degree of uncertainty. ... Systematic error (because of error in measuring instrument) 2. Random error (human errors such as- delay in starting, delay in stopping).
To solve the problem it is necessary to apply energy conservation.
By definition we know that kinetic energy is equal to potential energy, therefore
PE = KE

Where,
m = mass
g = gravitaty constat
v = velocity
h = height
Re-arrange to find h,

Replacing with our values


Therefore the correct answer is C.
That could be an electromagnet,
and it could also be an solenoid.