For two nucleons 2 fm apart, the strong force is A. Strongest for two interacting protons.
B. Strongest for two interacting neutrons.
C. Strongest for a proton interacting with a neutron.
D. Equally strong for any combination of protons and
neutrons.
Please help m

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.

In which of these cases are the two wave points considered to be in phase with each other?