Jack and jill are married. this year jack earned $72,000 and jill earned $80,000 and they received $4,000 of interest income from a joint savings account. how much gross income would jack report if he files married-filing-separate from jill?

The air that we breath is made mostly of which gaseous molecule

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?

Two waves maximally constructively interfere at a point in space. among the options below, select the possible value of their phase difference at that point in space.a. zerob. πc. π/2d. not determinable by the information provided