A ball initially moves at 6.50 m/s and later moves at 3.25 m/s in the same direction. If the net force acts in the opposite direction to the ball's motion producing an impulse of 9.70 Ns, what must be the weight of the ball, in Newtons

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?