Answer:
Explanation:
The electric force between two charged objects is given by:
where:
k is the Coulomb's constant
q1 and q2 are the charges of the two objects
r is their separation
In this problem:
q1 = 2.0 C
q2 = 1.0 C
r = 2 m
So, the electric force is
Answer:
Ohm's law states that I=V/R (Current=volts divided by resistance). Since we're looking for resistance, we'll rewrite it as R=V/I. Then just plug in the numbers; R=84/9, R= 9 1/3 or 28/3. The resistance of the wire is 9.33... or 9 1/3 ohm's, depending on how you wanna write it.
Hope it helped u if yes mark me BRAINLIEST!
Tysm!
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Answer:
pulse = force * time
force = mg = 0.1kg * 10 = 1 N
time = 0.5
pulse = 0.5 f.s
You want to know the difference between the two velocities, so you have to think 9 m/s - 2 m/s. The result is 7 m/s, the second option of your list. Hope that was helpful, have a great day!