38. if you notice a pinkish oily spot under your car, you should suspect a leak.

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m