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1. ### Watts and what they mean?

...this to. ... In mechanical energy of horsepower, it is the product of torque (rotation force) and RPM (rotation speed). Therefore, a given amount of...

11 Answers · Science & Mathematics · 31/05/2015

2. ### Help building a electric circut!?

Use an H bridge driven by a square wave generator. Use either power FETS or transistors in the H bridge, depending on the size of your motor. Compasitors are a little hard to procure, since there is no such thing.

2 Answers · Science & Mathematics · 11/05/2015

3. ### How to position induction coils in this configuration?

For what purpose - to turn the rotor? Magnetic field is positioned wrong for rotation.

1 Answers · Science & Mathematics · 22/09/2015

4. ### A shaft moving at 300 rpm is winding a rope around it. if diameter of shaft is 20 cm, nearly how much rope will be wound in 1 sec?

3 meters 300 rpm = 300 rotations / 60 seconds = 5 rps The shafts circumference is πd = (0,20 meters)(3.14) = 0.628 meters (5 rps)(0.628 meters) = 3.14 meters

5 Answers · Science & Mathematics · 02/05/2015

5. ### What are these electrical symbols?

...connection of the auxiliary winding reverses the motor's direction of rotation. B1-B2 is probably the coil of a spring-set brake. Energizing...

2 Answers · Science & Mathematics · 19/04/2015

6. ### What is the ultimate source of electrical energy?

...only counterexample I can think of, is tidal energy (which comes from rotational kinetic energy). Nuclear power is obvious. Although this ...

3 Answers · Science & Mathematics · 30/03/2015

7. ### How to calculate wind power in vertical axis wind turbines?

...blade is used forcing the upwind blade into position for the next rotation. Very little is left to generate electricity. This is why...

2 Answers · Science & Mathematics · 08/03/2016

8. ### How does a plane fly around the earth in both directions if the earth is spinning and revolving constantly at such a high speed?

...mph. For all practical purposes, the speed of the Earth's rotation is not relevant. That speed is "ground speed"...

17 Answers · Science & Mathematics · 11/03/2015

9. ### Statics Question I have no idea how to do this problem. Any help would be greatly appreciated?

Summation of Moment at A = 0, clockwise rotation (+), counter clockwise rotation (-) 16 B - 11(10x2) - 3(3) = 0 >>> 5 ...

2 Answers · Science & Mathematics · 08/02/2015

10. ### I have a question about turbine power an our planet?

...idea. The total energy can be calculated for a given change in rotational speed, knowing the mass and so the inertia, using the same approach as a...

2 Answers · Science & Mathematics · 12/01/2015