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.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?