Abeam of electrons is accelerated from rest through a potential difference of 0.200 kv and then passes through a thin slit. when viewed far from the slit, the diffracted beam shows its first diffraction minima at ± 12.1 ∘ from the original direction of the beam when viewed far from the slit. do we need to use relativity formulas? explain wide is the slit?

Research the neutrino using the internet and report your findings. in a nuclear decay, the nucleus of an atom splits apart. larger particles can be detected and their masses and velocities can be recorded. explain how the existence and properties of the neutrino could be predicted using the conservation laws.

Which two objects have the greatest gravitational force acting between them

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?