Answer:
25J
Explanation:
Kinetic energy = 1/2 mv²
Mass = m= 0.5kg
Velocity = v = 10m/s
K. E = 1/2 x 0.5 x 10 x 10
K. E = 0.5 x 5 x 10
K. E = 2.5 x 10
K. E = 25 J
The S. I unit of energy is joules with symbol J
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Answer:
It will.
Explanation:
For a circuit to function properly, everything has to be connected. As the diagram shows that everything is connected and there are no gaps, it will light.
Answer: 
Explanation:
Given
The voltage of the battery is 
Current through the battery is 
(a) Power is the product of voltage and current
Power dissipates is given by
(b) Energy delivered
Answer:
Explanation:
b = b₀ cos ω t
When t = 0 , magnetic field will be b₀ and positive or directed into the page . This is the maximum value of magnetic field. As times goes ahead , magnetic field decreases so magnetic flux decreases . The induced emf or current will be such that it will opposes this reduction of magnetic field. Hence , current in clockwise direction will be generated in the coil which will generate magnetic flux into the paper.
In this way current will be induced clockwise.
