Name: Date Period: PAP Physics: Coulomb\'s Law 2. A hydrogen atom contains a pro

Question

Name: Date Period: PAP Physics: Coulomb's Law 2. A hydrogen atom contains a proton and an electron separated by a distance of 5.0 x10 meters. The charge on the proton is the same as the charge on the electron: 1.6x10 ISC. Calculate the force between the two particles. Draw the direction of the force between the particles. 3. A positive charge of 1.8x10 Cand a negative charge of -1.0x10 Care 0.014 m apart. Calculate the force between the two charges? Do they repel or attract? 4. Two charged objects have a repulsive force of .020 N. If the charge ofone of the objects is doubled, then what is the new force? 5. Two charged objects have a repulsive force of.o4 N. If the distance separating the objects is halved, then what is the new force? 6. Suppose that two each with a charge of+2.00 Coulomb separated by a distance of point charges, 2.00 meter. Determine the magnitude of the electrical force between them.

Explanation / Answer

2.

From coloumb's law

F=KQ1Q2/r2=(9*109)(1.6*10-19)(1.6*10-19)/(5*10-11)2

F=9.216*10-8 N

since electron has negative charge ,while proton has positive charge ,therefore force is attractive

3.

force between two charges

F=(9*109)(1.8*10-6)(-1.1*10-6)/0.0142

F=-90.92 N

since charges are opposite sign ,so they attract

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