Answer:
gravitational potenetial energy =ℎ
Explanation:
none
The total energy of the system is always conserve, therefore at all the point A, B & C the total energy of the skater is same.
Kinetic energy is directly proportional to the velocity, as the skater reaches the top of the pipe, the velocity of the skater would be zero, so there would be no kinetic energy, as he progress down the pipe the velocity of the skater increases, thus kinetic energy increase and highest at the bottom of the pipe, therefore the increasing order of the kinetic energy is C>B>A.
Potential energy is dependent on the height, as the height increases potential energy will also increase. therefore the increasing order of the potential energy is A>B>C.
Answer:
h = 0.697 [m]
Explanation:
To solve this problem we must use the energy conservation theorem, where it tells us that kinetic energy is converted to potential energy or vice versa.
where:
Ekinet = kinetic energy [J]
Epot = potential energy [J]
Speed = (distance covered) / (time to cover the distance)
= (6.4 meters) / (4 minutes)
= (6.4/4) (meter/minute) = 1.6 meter per minute .
c. A current is induced in the coiled wire, which lights the light bulb.
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What is electromagnetic induction?</h3>
If we kept the bar magnet stationary and moved the coil back and forth within the magnetic field an electric current would be induced in the coil.
Then by either moving the wire or changing the magnetic field we can induce a voltage and current within the coil and this process is known as Electromagnetic Induction and is the basic principle of operation of transformers, motors and generators.
When the magnet shown below is moved “towards” the coil, the pointer or needle of the Galvanometer, which is basically a very sensitive center zeroed moving-coil ammeter, will deflect away from its center position in one direction only.
When the magnet stops moving and is held stationary with regards to the coil the needle of the galvanometer returns back to zero as there is no physical movement of the magnetic field.
Therefore ,
If you move a bar magnet back and forth along the axis of the coiled wire shown below then a current is induced in the coiled wire, which lights the light bulb.
Learn more about electromagnetic induction here:
brainly.com/question/26334813
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