Achild moving at constant velocity carries a 2 n ice cream cone 1 m across a level surface. is she doing work? a. yes, because the force acts perpendicular to the direction of motion c. yes, because the force acts in the same direction as the motion b. no, because the force acts perpendicular to the direction of motion d. no, because the force acts in the same direction as the motion

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .