Answer:
The value is
Explanation:
From the question we are told that
The current is
The inductor is
The voltage induced is
Generally the emf induced is mathematically represented as
Here is the time taken
=>
=>
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During the course of a demonstration the professor is called away. When he returns he finds a beaker of water that was at room t
1 answer:
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Answer:
Explanation:
Assume that the distance travelled initially is d.
In order to stop the block you need some external force which is friction.
If we use the law of energy conservation:
a)
Looking at the formula you can see that the mass doesn't affect the distance travelled, as lng as the initial velocity is constant (Which indicates that the force must be higher to push the block to the same speed) therefore the distance is the same.
b) If the velocity is doubled, then the distance travelled is multiplied by 4, because the distance deppends on the square of the velocity.