D Question 1 2.5 pts 1. Three point charges, qi = 2.0 UC, q2 = 2.0 UC, and q3 = -1.0 uC, are located at the vertices of an equilateral triangle of side length 30 cm. What is the potential energy of this arrangement? D Question 2 2.5 pts 2. An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. The narrow section is 10.0 m from the wide section and the narrow section is higher than the wide section. The velocity of the fluid in the wide section of the pipe is 4.00 m/s and the velocity of the fluid in the narrow section of pipe is 9.00 m/s. The pressure of the fluid in the wide section is 250 kPa. What is the pressure in the narrow section of the pipe (density of the fluid is 1000 kg/m3)? D Question 3 2.5 pts