Answer:
P.E = 980 Joules
Explanation:
Given the following data;
Mass = 20 kg
Height = 5m
Acceleration due to gravity = 9.8 m/s²
To find the potential energy stored in the block;
Mathematically, potential energy is given by the formula;
Where,
P.E represents potential energy measured in Joules.
m represents the mass of an object.
g represents acceleration due to gravity measured in meters per seconds square.
h represents the height measured in meters.
Substituting into the equation, we have;
P.E = 980 Joules
Answer:
Explanation:
.it looses 200 electrons to another body b.fund the charge acquired b… ... 200 electrons to another body b.fund the charge acquired by the bodies a and b ... The line current is 5 A. Calculate the value of each resistor
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Answer:
Rise in temperature will be
So option (c) will be the correct answer
Explanation:
We have given solar radiation on the panels
25 % of the conversion efficiency = 25 % 1000 = 250
Area is given
So radiated power
Time is given t = 1 hour = 3600 sec
So energy
Mass of water m = 30 kg
And
So rise in temperature
So option (c) will be the correct option