Suppose you lived in the crater copernicus on the side of the moon facing the earth. during what fraction of the time would you be able to see the stars?

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

What does every magnet possess? a. iron metal b.strong magnetic field c.repulsion d.north and south poles

Aruby has a density of 3.9 g/cm³. what is the mass of the ruby, if its volume is 5 cm³? a. 0.78 g b. 1.28 g c. 8.9 g d. 19.5 g