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1. ### Finding potential between identical spheres

The difference would then be zero?
2. ### Finding potential between identical spheres

So would it be Va=(8.99*109)((165*10-6)/1.76) plus the contribution from Vb therefore the answer would be V=1.7*106V?
3. ### Finding potential between identical spheres

The distance between the two is r=1.2m plus from the center of the sphere is 0.28m. Therefore the total distance would be 1.48m. If there are contributions from both charges am I not using the right equation?
4. ### Finding potential between identical spheres

So Va=k(q/r)=(8.99*109)((165*10-6)/1.48)=1.002*106? and the same for Vb?
5. ### Finding potential between identical spheres

This is where I am confused. Would you use the same equation but make r=1.20m?
6. ### Finding potential between identical spheres

Va=k(q/r)=(8.99*109)((165*10-6)/.28)=5.298*106 The potential for Vb would be the same but opposite. Is this correct?
7. ### Finding potential between identical spheres

Homework Statement Two oppositely charged identical insulating spheres, each 56.0cm in diameter and carrying a uniform charge of magnitude 165μC , are placed 1.20m apart center to center. If a voltmeter is connected between the nearest points (a and b) on their surfaces, what will it read...
8. ### The Bends- Volume change

Homework Statement If deep-sea divers rise to the surface too quickly, nitrogen bubbles in their blood can expand and prove fatal. This phenomenon is known as the bends. If a scuba diver rises quickly from a depth of 23m in Lake Michigan (which is fresh water), what will be the volume at the...
9. ### Changing your center of mass

Homework Statement To keep the calculations fairly simple, but still reasonable, we shall model a human leg that is 92.0cm long (measured from the hip joint) by assuming that the upper leg and the lower leg (which includes the foot) have equal lengths and that each of them is uniform. For a...
10. ### The kinetic energy of walking

Homework Statement If a person of mass M simply moved forward with speed V, his kinetic energy would be 0.5MV2. However, in addition to possessing a forward motion, various parts of his body (such as the arms and legs) undergo rotation. Therefore, his total kinetic energy is the sum of the...
11. ### Tension required to heal a fractured tibia

Homework Statement While a fractured tibia (the larger of the two major lower leg bones in mammals) is healing, it must be held horizontal and kept under some tension so that the bones will heal properly to prevent a permanent limp. One way to do this is to support the leg by using a variation...
12. ### Length of acceleration for a rock fragment escaping Mars

Thanks for the reply! I figured out that I actually had the right answer I was just confusing the units.
13. ### Statistic question involving pulmonary function

Homework Statement Forced expiratory volume (FEV) is an index of pulmonary function that measures the volume of air expelled after 1 second. FEV is influenced by age, sex and cigarette smoking. Assume that in 45- to 54-year-old nonsmoking men FEV is normally distributed with mean = 4.0 L and...
14. ### Length of acceleration for a rock fragment escaping Mars

Homework Statement It has been suggested, and not facetiously, that life might have originated on Mars and been carried to Earth when a meteor hit Mars and blasted pieces of rock (perhaps containing primitive life) free of the surface. Astronomers know that many Martian rocks have come to...