Vesta, a minor planet in the asteriod belt between mars and jupiter, has a mean radius of 525 km and mass of 2.59 x 10^20 kg. the dawn spacecraft (m = 1240 kg) orbited vesta in 2011 & 2012.
find the local acceleration due to gravity at the mean surface of vesta. what is the fractional change if instead you are at the top of the highest point on the surface, an additional 22 km from the center of gravity. assume all of vesta's mass is concentrated at its center of gravity.

At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book.required: distance away from earth or moon

Which of the following quantities are units of momentum? (there could be more than one correct choice.) a)n m b) kg s/m c) kg m/'s d)n-s 12 points] e) kg m2/s2

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.