The voltage in a circuit is given by the equation V= IR.in this equation v is the voltage Iis correct and R is the resistance wh
1 answer:
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Answer:
2.8m
Explanation:
Convert to metric:
500g = 0.5 kg
15g = 0.015 kg
Assuming elastics collision, we could use the law of momentum conservation to calculate the speed of black and projectile post-collision V:
mv = (M + m)V
This would make the system moves up, which convert its kinetic energy to potential energy. By the law of energy conservation when the mass reaches its highest point (aka speed = 0)
Answer:
to the left
Explanation:
The magnitude of the electrostatic force between two charges is given by the following equation:
where:
is the Coulomb's constant
are the magnitude of the two charges
r is the distance between the two charges
Moreover, the force is:
- Attractive if the charges have opposite sign
- Repulsive if the charges have same sign
In this problem, we have:
is the magnitude of charge 1
is the magnitude of charge 2
r = 3 m is the distance between the two charges
Substituting, we find the force on both charges:
Here, the two charges are both positive, so the force is repulsive; since the 2 nC charge is on the left, this means that the force on this charge is to the left (away from the 5 nC charge).