Aball is thrown upward and outward from the top edged of a 50 ft building it reaches its highest point 20 ft above and 10 ft out from the building. how far from the building is the ball when it hits the ground ?

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton