Apart from the masses, how are binary systems with a neutron star different from binary systems with a white dwarf?

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)