Activity of Integration 5 (page 54) Imagine one of the daily newspapers in your country has published an article entitled "The sun will soon stop moving". The National Science Forum has organized a conference to discuss the newspaper article, and your school has been invited to participate in the discussion. Using the knowledge, you have learnt in this chapter, prepare a paper of at least one and a half pages that you will present at the conference. In your paper, point out the likely effects on time and people's lives if the sun stopped moving.

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.