Answer:
Th spring is compressed by distance
Explanation:
Given:
Mass of block A=
Mass of block B=
variation of coefficient of friction with x,
spring constant=k
Distance covered on frictional surface=d
Taking block A and block B as a system , there is no external force acting on the system so the momentum can b conserved in horizontal direction.
Conservation Of Momentum
Now the blocks got stick together so both of them will pass through the frictional surface and will compress the spring together.
Work done by friction
Work done by spring
So applying Work Energy Theorem before the blocks moves to the frictional surface and when the blocks comes to rest by co pressing the spring by distance x.
Work done by all the spring +work done by friction=change in kinetic Energy of the system of blocks.
The correct answer is low resistance.
A heating element's resistance is neither "extremely high" nor "very low." Since the amount of heat produced by the circuit is proportional to the current, the resistance of the heating element must be low enough to draw the necessary current. Thus, low resistance is the general characteristic of electrical devices like warmers, toasters, and heating pads. Any voltage will experience high current if resistance is too low. Current will be low if resistance is too high and voltage is okay. NOTE: Current increases as resistance decreases and decreases as resistance increases while the voltage remains constant, like in an automotive circuit.
Learn more about electrical appliances here :-
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The ice is going from one stage to another making it a physical change we it melts it goes from a solid to a liquid.
Answer:
3.14946 rad/s
Explanation:
= Intial moment of inertia
= Final moment of inertia
= Initial angular velocity
= Final angular velocity =
In this system the angular momentum is conserved
The angular velocity when the diver left the board is 3.14946 rad/s
I would say your answer to this question would be D