Galileo's telescope was not of high quality by modern standards. he was able to see the moons of jupiter, but he never reported seeing features on mars. use the small-angle formula to find the maximum angular diameter of mars when mars is closest to earth. the diameter of mars is 6800 km. when mars is at its closest point it is 55.7 million km away from earth. how does that compare with the maximum diameter of jupiter? give the answer to three significant figures and give your answer in arc seconds.

State the following: boyle's law and charle's law

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.