# Yahoo Web Search

1. ### What is the difference between a start capacitor and a run capacitor ? and which is used on a generator ?

wikipedia Start capacitors briefly increase motor starting torque and allow....  so you can use electrolytic capacitors for the start cap, but not for a run cap. Generators don't use any...

2 Answers · Science & Mathematics · 26/10/2019

2. ### related rates shadow rock?

...and height 10 and your small triangle has base x and height y. To start out, we need to keep y general, since it is changing. By similar...

2 Answers · Science & Mathematics · 07/11/2019

3. ### Number of Independent degrees of freedom?

...of the hemisphere, a = d²q/dt², is constant.  Since we start from rest, using simple kinematics, we know q =  ½at² and dq/dt...

1 Answers · Science & Mathematics · 13/11/2019

4. ### Rock mechanics?

The total mechanical energy would be flat. As the potential energy decreases, the kinetic energy increases, and this keeps the mechanical energy at a constant value. Kinetic energy would be increasing. The potential energy is turning into...

4 Answers · Science & Mathematics · 21/10/2019

5. ### How do you find changing acceleration?

The time is t = { arccos(sqrt(x/d)) + sqrt((x/d)*(1-x/d)) } * d^1.5 / sqrt (2 mu) with x = final separation = sum of radius of the two planets d = initial separation mu = G * sum of the two masses.

3 Answers · Science & Mathematics · 02/11/2019

6. ### What happens if gravity accelerates a object to a speed faster than light?

Not sure whether you want the answer from classical Newton plus special relativity or just general relativity. From the classical Newton gravity standpoint where we can treat gravity as just another force, plus special relativity, we can simply use the relativistic energy-momentum equation where the change in both the time...

9 Answers · Science & Mathematics · 04/11/2019

7. ### I need help with circular motion?

To keep the car in a circle at any given speed we need a centripetal acceleration of v^2 / r  = 4^2/523 To accelerate the car along a path we require an acceleration = dv/dt = (44.4-0)/12.8 As both accelerations are perpendicular to each other the resultant lies on some angle between...

1 Answers · Science & Mathematics · 05/11/2019

8. ### Help with Physics please?

F = ma If we let F = force of one rocket Ff = friction force 4F - Ff = ma F = (ma + Ff) / 4 so the force for each rocket F = (1615(57.0) + 430) / 4 F = ‭23,121.25‬ N With only one rocket firing a = F / m a = (‭23,121.25...

1 Answers · Science & Mathematics · 15/10/2019