Problem 3) a 70 ft long, 0.5 in diameter hose with a roughness of 0.0009 ft is fastened to a water faucet where the pressure is p1, determine p1 if there is no nozzle attached and the average velocity in the hose is 6 ft/s neglect minor losses and elevation changes. repeat the problem if there is a 0.25 in diameter nozzle attached to the end of the hose.

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little