Asoft drink with the properties of 10 oc water is sucked through a 3.6-mm-diameter, 0.25-m-long straw at a rate of 3.5 cm3/s. (a) is the flow at the outlet of the straw laminar? (b) is it fully developed? to explain calculate (c) the reynolds number and (d) the entrance length.

In physics the desire of an object to keep doing what it is doing is termed?

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.