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19:50 Sat 14 May
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21. When comparing the force of attraction between an electron and a proton due to
the electric force and gravity, it can be concluded that ...
a)
the gravitational force is a lot stronger.
b)
the electric force is a lot
stronger.
c)
the two types of forces are the same
d)
they cannot be compared.
e)
None of the above is correct.
22. If two wires, with currents cross each other at

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3) Please answer this one! Your object has a mass of 43.8 kg. You separate the protons and electrons into two boxes. You place the boxes at a distance of 26 m apart from one another. How much force attracts the two boxes to one another? 5.85E+25 N 1.17E+26 N 2.34E+26 N 2.93E+25 N
3
1. When point charges q = +8 4 µC and q2 = + 5,6µC are brought near each other, each experiences a repulsive force of magnitude 0.77. N. Determine the distance between the two charges. [ Given Data, Coulomb's Constant, Ke = 8.99X10 Nm2/C21 The distance between the two charges = m. [2 marks] 2.An electric field of 250000 N/C points due west at a certain spot. What are the magnitude and direction of the force that acts on a charge 7:0HC at this spot? The magnitude of the force = N and direction = from the charge. [2 marks)
2. Three charges are arranged as shown in Figure. Find the magnitude and direction of the electrostatic force on the charge at the origin. [ Given Data Coulomb's constant, Ke = 8.99X10° Nm?/C²] q2 6.00nC 3.00nC 0.250m q1 0.150m -2.00nC q3 1. The electrostatic force F12 calculated (between q2 and q1)from the above diagram is = 2. The electrostatic force F23 calculated (between q2 and q3)from the above diagram is = u N 3. The Magnitude of the resultant force on q2 measured from the above diagram is = μΝ 4. The resultant direction O measured from the -x axis is = degrees
The following questions refer to the configuration involving an electric dipole and an external charged particle depicted below:
13-
5.) Protons can be approximated as spheres with a radius of about 8.5 x 10-16 m. Using Coulomb's law (which we saw at the beginning of the year), calculate the force required for two particles with the charge of one proton to be this far apart. While not exact, this gives a sense for how much force must be applied for the first step of this process to occur. Note: you will have to look up a couple of values here .. units are important, so it's probably best to work in Sl units.