Question 10 of 10 Which expression correctly describes force using Sl units?
A. 1 N = 1 kg m/s2
B. 1 N = 1 kg. m/s
O C. 1 J = 1 kg. m/s2
O D. 1 J = 1 kg-m/s

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge