Aparticle is to move in an xy plane, clockwise around the origin as seen from the positive side of the z axis. in unit vector notation, what torque acts on the particle if the magnitude of its angular momentum about the origin is (a) 4.0 kg x m^2/s, (b) 4.0t^2 kg x m^2/s, (c) 4.0 sqrt(t) kg x m^2/s, and (d) 4.0/t^2 kg x m^2/s

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.