When magnesium (mg2+) and fluorine (f1-) combine in an ionic bond, the resulting formula will be a) mg2f. b) mg2f2. c) mgf. d) mgf2.

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?