What is the nuclear binding energy of an atom that has a mass defect of 5.0446 x 10-40 kg?
Use E = mc2. (Remember: The speed of light is approximately 3.00 x 108 m/s.)
5.61 x 10-46 J
1.51 x 10-20 j
O 4.54 x 10-12 J
1.78 x 1045 J

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.

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?