Answer:
0.0078 N
Explanation:
The electrostatic force between two charges is given by Coulomb's law:
where:
is the Coulomb's constant
are the two charges
r is the separation between the two charges
The force is attractive if the two charges have opposite sign, and repulsive if the two charges have same sign.
In this problem, we have:
located at
located at
located at
The force between charge 1 and charge 2 is:
And since the two charges have opposite sign, the force is attractive, so the force on charge 1 is towards the right.
The force between charge 1 and charge 3 is:
And since the two charges have same sign, the force is repulsive, so the force on charge 1 is towards the left.
Therefore, the net force on charge 1 is:
towards the right.
The answer is A: Ice
The prefix cryo refers to cryoprecipitate, which means a frozen blood product prepared from plasma.
You can calculate the speed of the ball by the distance it travels divided by the time.
Length of string = 2m
Circumference of circle = 2*radius*π = 4*pi = ~12.6 meters
Speed = distance/time = 12.6m/2s = 6.28m/s
Acceleration = V²/R where the velocity at any one point is the same as the speed.
acceleration = (6.28)²/2 = ~19.72m/s²