Two heavenly bodies having mass m¹ and m² are separated by a distance. what happens if the distance between them is made half keeping their masses constant ? ​

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?