The force between two charged particles is an electrostatic force. The intensity of this force is given by the following formula:
Where q1 and q2 are charges r is the distance, and k_c is Coulomb's constant.
Coulomb's constant has the value of:
When we plug all the given values into the formula we get:
Negative sign means that force is attractive.
Answer: The centripetal force.
Explanation:
Refer to the figure below.
The centripetal acceleration of the object is
a = v²/r, directed toward the center of the circular path.
where
v = the tangential velocity
r = radius of the circular path
The centripetal force is
F = (mv²)/r
Is it not standard deviation? or am i just dumb lol
Answer:
False
Explanation:
According to Newton's 3rd law, the tension between the engine and the 1st freight cars would equals to the force required to pull all the freight cars from the 1st one on ward. In addition, Newton's 2nd law states that the F = ma, which means that force is proportional to the mass of all the freight cars, given that the freight train is accelerating. So if some of the cargo in the last car were transferred to other cars, their total mass would stay the same, and so as force F and tension.