Acrate is sliding down a ramp that is inclined at an angle 30.6 ° above the horizontal. the coefficient of kinetic friction between the crate and the ramp is 0.360. find the acceleration of the moving crate.

Aregular polygon has angkes of size 150° each.how many side has the polygon

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

Aforce of 8,480 n is applied to a chart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?