The two 100 mm diameter spheres constructed of different metals shown are in deep space. Determine the gravitational force the copper sphere exerts on the titanium one if d=3.7 m. The density of copper is 8910 kg/m and that of titanium is 3080 kg/m. Your answer will be small, so give it in [pN]. Copper d Titanium Type your answer... A space shuttle is in orbit at an altitude of 150 mi. Find the value of gravitational acceleration at this altitude in [ft/s2]. You may assume that the Earth's radius is 3950 mi. Type your answer... Determine the weight of the man in [lb] while in the shuttle in the previous problem if he weighs 200 lb on the surface of the Earth.