The diagram below shows a man is trying to pull a box a distance of 3 m with a force of 20 N that makes a 35º with the horizontal. Apply your scientific knowledge and understanding of work to find the work done on the box.

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2