[OU.04]What type of galaxy is described as having a circular shape with most of the objects concentrated around its center? spiral elliptical irregular barred spiral

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.