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1. Physics Help ?

"orbital radius of about 3.29 km (from the center of the Earth)" ?? that is nonsense. earth radius is 6,371 km "The orbital period for a satellite is dependent on the mass of the satellite and ________"  also wrong, it is not dependent on the mass at all. T = 2π√[R³...

1 Answers · Science & Mathematics · 13/11/2020

2. Physics Homework Help?

...wrong formula. The area to use is that of a SPHERE of radius r , not a circle. So P = I*A = I*4πr² ...

1 Answers · Science & Mathematics · 12/11/2020

3. Physics: Circular Motion?

Centrifugal force F = mv²/ r where m - mass of stone v - speed r - radius of circle Find v such that F exceeds 25N required to break a string v = √(Fr/m) v = √(25*2/0.75) = 8.16 m/s

1 Answers · Science & Mathematics · 12/11/2020

4. Physics: Circular Motion ?

...of the circle.(because airplane is turning 90°from east to south) s = (2 R pi)/4 = R pi / 2 R pi / 2 = v t divide by pi/2 R = 2 v t...

1 Answers · Science & Mathematics · 12/11/2020

5. Physics: Circular Motion?

... force at the bottom is weight+centrifugal force F = mg + mv^2/ R = m (g + v^2/ R ) radius of path R is equal to length of rope extract...

1 Answers · Science & Mathematics · 11/11/2020

6. Physics: Circular Motion?

...box in that point and that is weight+centrifugal force F = mg + mv²/ R = m (g + v²/ R ) F = 25 * (9.8 + 11²/7.5) = 648.3 ...

1 Answers · Science & Mathematics · 11/11/2020

7. Physics: Circular Motion?

... is gravitational constant M is the mass of the Earth r is the distance from the center of the Earth We are not...

1 Answers · Science & Mathematics · 11/11/2020

8. Physics: Circular Motion?

...the text), it only changes the direction of the vector of speed. a = v² / r a = 6670² / 8.92x10⁶ = 4.99 m/s²

1 Answers · Science & Mathematics · 12/11/2020

9. Physics: Circular Motion?

The simple way is to put mv^2/ r = T but this forgets about gravity. The longer way ...

1 Answers · Science & Mathematics · 12/11/2020

10. What is the value of Is?

... that is in series with 4 and 2.5 = 17.6 and I = E/ R = 15/17.5 = 0.85 amps

1 Answers · Science & Mathematics · 11/11/2020