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1. Four stars with equal masses m=1.99×1030 kg are located at the corners of a square?

...all equal magnitudes. In fact, there's no need for any 'origin' to frame the problem; it sure does help when you're trying to work out the answer, though! The net force vector is just the vector...

1 Answers · Science & Mathematics · 03/12/2012

2. 98.02 pJ energy is stored in a 1.99 cm × 1.99 cm × 1.99 cm region of uniform electric field. What is the?

... you know how much I hate physics? Lol I hate it with a PASSION. **Do sig figs matter? Lol The equation? Energy / volume = (1/2)(epsilon)E^2 ? ...IDK...

2 Answers · Science & Mathematics · 10/09/2010

3. A 1.99 kg book slides 1.09m along a level surface. coefficient of kinetic friction(b/w book and surface)=0.128?

work done = force x distance mg = 1.99 x 9.8 = 19.502 N 19.502 x 0.128 = force required to overcome friction = 2.5 N (rounded) 0 - 2.5 = -2.5 N (force of friction) -2.5 x 1.09 = -2.725 J (answer)

2 Answers · Science & Mathematics · 19/03/2011

4. A door of width 1.07 m and height 1.99 m weighs 286 N and is supported by two hinges, one 0.600 m from the to?

If you did not specify that each hinge supports half of the doors weight, this question...

2 Answers · Science & Mathematics · 31/07/2009

5. Calculate the orbital period of Neptune (in yr) from knowledge of G, the mass of the sun (M = 1.99×1030 kg)?

What formula did you use? In simplest form, Kepler's Third ...

3 Answers · Science & Mathematics · 04/03/2014

6. A 3.21 kg object is attached to a 1.99 m long string and swung in a vertical circle at a constant speed of 10.7 m/s.?

...mg = mv²/r => T = m(v²/r - g) = 3.21(10.7²/1.99 - 9.81) = 3.21*47.723 = 153.19 N also at loop low: T - mg = mv²...

2 Answers · Science & Mathematics · 22/05/2015

7. A 1.99 kg book slides 1.09m along a level surface. coefficient of kinetic friction(b/w book and surface)=0.128?

The friction is given by Ff = mu*N = mu*m*g Work is the force times the distance . (Ff in this case)*(1.09m in this case)

2 Answers · Science & Mathematics · 14/05/2011

8. A boat is pulled by two locomotives through a canal of length 1.99 km.?

Use just 1 cable tension and 1/2 the angle, to determine the normal force in the forward direction. (cos 10.2) x 5140N = 5058.788N. Double it, = net force in forward direction of 10,117.58N. W = (fd), = 10,117.58 x 1,999m, = 20,225,042.42 joules., or 20.225MJ.

1 Answers · Science & Mathematics · 23/09/2012

9. Energy conservation question physics help please!!!?

...v^2 = 0.012027 v = sqrt(0.012027/0.00305) = 1.99 m/s What values did you put for (normal force)(coefficient of friction)(distance) ? _______________.

2 Answers · Science & Mathematics · 02/12/2010

10. What type of water does not boil?

lol is this a trick question or lame?? water between 0.1-99.9 degrees celcius doesn't boil kept as it is...

22 Answers · Science & Mathematics · 17/02/2008