Asatellite at a particular point along an elliptical orbit has a gravitational potential energy of 4700 mj with respect to earth's surface and a kinetic energy of 4800 mj . later in its orbit the satellite's potential energy is 6000 mj .

use conservation of energy to find its kinetic energy at that point.

express your answer to two significant figures and include the appropriate units.

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane