HELP FAST CORRECT ANSWERS ONLY What happens to a white dwarf with a mass equal to 1.4 solar masses?

A.

It collapses to form a neutron star.

B.

It collapses to form a black hole.

C.

It remains stable as a white dwarf.

D.

It explodes as a supernova.

The two required components for a generator

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?