Question 7 2.5 pts The diagram below shows a tapered horizontal pipe. An ideal fluid (density = 895 kg.-'rna"l flows through this pipe. What is its flow velocity at the outlet? Quote your answer in units of meters per second to two significant figures. Inlet Qutlet Radius = 20.0 mm Radius = 10.0 mm Measured pressure difference = 3550 Pa Question 8 2.5 pts The diagram below shows three point-charges. all 2.0 m from the origin. What is the potential at the origin? State your answer in units of volts to two significant figures. Origin