A 7 kg block is at rest on a table. The coefficient of static friction between the box and the table is 0.40 and the coefficient of kinetic friction is 0.10 . Then a 30 N horizontal force is applied to the box. What is the acceleration of the box? (Use 9.8 m/s/s for the acceleration due to gravity). Please hurr

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

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.