Simone created a chart to summarize the energy transformations that take place when energy from the wind is used to generate ele
2 answers:
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Answer:
45 W
Explanation:
First of all, we need to find the work done by the person to lift the bag. The work done is given by
where
F = 75.0 N is the force applied
d = 1.50 m is the displacement of the bag
Substituting numbers into the formula,
Now we can find the power used, which is given by
where
t = 2.50 s is the time taken
Again, using W=112.5 J, we find
Answer:
Current in the circuit will be 0.024 A
Explanation:
We have given battery voltage v = 6 volt
Resistance R = 220 ohm
Diode potential = 0.7 volt
So voltage across the resistance = 6 - 0.7 = 5.3 volt
Current is given by
So current in the circuit will be 0.024 A
Answer:
Explanation:
Given
Mass of object (m)=6 kg
falling height(h)=10 m
mass of water()=600 gm
temperature of water =15
specific heat of water
Let T be the Final Temperature of water
Here Object Potential Energy is converted into Heat energy which will be absorbed by water
Potential Energy(P.E.)
Heat supplied
T-16=0.234
This is not an efficient way of heating water as there is onlyincrease in temperature.