Water flows in a horizontal pipe of length l. at the midpoint l/2, the pipe diameter changes. on one side of the midpoint, the pipe diameter is 8 cm, and the water is flowing at 0.5 m/s. on the other side, the water is moving at 2 m/s. what is the second diameter of the pipe?

See the attachment and solve question 5th

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?