If a negatively charged particle moves into a magnetic field traveling in a straight line, how would you expect its motion to change? a) the particle would slow and stop moving. b) the particle would travel in a curved path. c) the particle would continue traveling in a straight line. d) the particle would make a right angle turn and then continue traveling in a straight line.

If two metal balls each have a charge of -10^-6 c and the repulsive force between them is 1 n, how far apart are they? (coulomb's constant is k = 9.0x 10^9 n-m^2/c^2? 9.5 m 9.0 mm 9.5 cm 0.9 m .

What happens when a rubber rod is rubbed with a piece of fur?

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.