A wrench 30 cm long lies along the positive y-axis and grips a bolt at the origin. A force is applied in the direction k0, 3, 24 l at the end of the wrench. Find the magnitude of the force needed to supply 100 N∙m of torque to the bolt.

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.

Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.