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1. Two metal sphers, one having a charge of 4 * 10^-6 C and the other having a charge of 2 * 10^-6 are 3 cm apart. If k = 9 *10^9 Nm^2C^-2. what is the electrical force between them.

2. A toaster draws a current of .5 A when making toast. If it takes a total charge flow of 60.00 at 120.0 V to tast a bagel, how many minutes will the toaster take?

3. A clothes dryer is connected to a 240.0v line draws 10.00 A of current for 20.00 minutes. Approximatley how much electrical energy does the dryer consume?

4. A peice of wire 5 m long has a resistance of 2 ohm. Determine the resistance of another peice of wire made of the same material but which is 10m long and has triple the diameter. Explain your reasoning.

5. A bird stands on an electric transmission line that is carrying a current of 140.0 A. The line has 2.3 * 10^-4 ohm/m if the birds feet are 2.5 cm apart what voltage does the bird feel.

6. a total resistance of 3.00 ohm is to be produced by a connection an unkown resistance to a 12.00 ohm resistance. What must be the value of the unkown resistance and how should it be connected.

7. what is the source of magnetism at the atomic level?

8. What is a cow magnet and how is it used?

9. Apply the motor principle to explain the curvatur of comet tails.

Thanks alot!

if you need any clarifying because i made a typo just ask. And if a number seems wrong it might be i made a mistake so just say so. Thanks agian.