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fomenos
3 years ago
8

The diagram shows the flow of water through a hydroelectric power station. The falling water

Physics
1 answer:
KonstantinChe [14]3 years ago
7 0

Answer:

KE = \frac{1}{2} mv^{2}

Explanation:

In the generation of energy from hydroelectric power station, the motion of water, and the turbines are paramount. The falling flowing water turns the blades of the turbine, which in-turn causes the movement of a coil within a strong magnetic field.

The motion of the coil which cuts the strong magnetic field induces current. Thus, the system generates electrical energy.

The equation that links kinetic energy (KE), mass (m) and speed (v) can be expressed as:

KE = \frac{1}{2} mv^{2}

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lina2011 [118]

Answer:

The lightbulb will not turn on because a switch is connected to it in parallel and when it is closed, like it is now, it becomes a short, by-passing the bulb completely.

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3 years ago
Which is the BEST definition of refraction? A) Light or sound waves change direction. B) Light or sound waves bounce off a mediu
melisa1 [442]
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4 years ago
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A Hollywood stuntman is preparing for a dangerous car stunt. He must drive a car at high speed toward the edge of a cliff and br
Mnenie [13.5K]
Answer:

 Maximum starting velocity that the car can possess if the stuntman is to be successful = 50 m/s

Explanation:

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So, Maximum starting velocity that the car can possess if the stuntman is to be successful = 50 m/s
5 0
3 years ago
A student is trying to determine the acceleration of a feather as she drops it to the ground. if the student is looking to achie
Anna [14]

The coordinate system should have the origin at the point where the feather is dropped and the downward direction is to be taken as positive.

All falling bodies experience acceleration towards the center of the Earth due to the force of gravitational attraction exerted on the object by the Earth. A feather, when dropped experiences an acceleration in the downward direction. Since the acceleration of the feather is in the downward direction, a feather, when dropped with zero initial velocity, has its velocity vector directed in the direction of its acceleration.

If the downward direction is taken as positive, the falling feather can be said to have a positive velocity and a positive acceleration.

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3 years ago
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