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You own a restaurant that is investigating new ways to deliver beverages to customers. One proposal is for a tube that will deliver root beer of density 1,090 kg/ m3 throughout the restaurant. A section of the tube is shown below. The blueprints say that the speed and gauge pressure of the root beer at point 1 are 3.00 m/s and 12,300 Pa respectively. The root beer at point 2 is 1.20 m higher than the fluid at point 1 and is traveling at a speed of 0.750 m/s. You can't make out the number on the blueprints for the pressure of the root beer at point 2. Use Bernoulli's equation to figure out the gauge pressure of the root beer at point 2.
Fill a 250 mL beaker with water. Get two plastic straws 12 cm long. Place one straw
in the beaker with water. Place the second straw in the position shown in the figure, and blow
hard. Ask a classmate to observe the level of water in the first straw before blowing and while
blowing into the second straw. Why does the water rise when you blow into the second straw?
A horizontal pipe is 2 cm in radius at one end and increases in size so that it is 5 cm in radius at
the other end. Water is pumped into the small end of the pipe at 10 m/s and a pressure of
300 kPa (kilopascal). Find the
a.) speed and
b.) pressure of the water at the pipe’s large end.
Calculate the pressure needed for the pump of a 3 cm radius fire hose to pump water through
its nozzle of radius 2 cm at an average speed of 4 m/s when the nozzle is 15 m above the fire
track.
A very wealthy woman who loves soda builds her house with a cylindrical pipe that transports Mountain Dew from downstairs to her upstairs bedroom. The Mountain Dew enters the house downstairs via a pipe with a cross sectional area of 0.0036 m2 where it is traveling with a speed of 0.48 m/ s . At the wealthy lady's bedroom, the faucet pipe through which the Mountain Dew exits has an area of 0.0012 m2. What is the speed of the Mountain Dew as it exits the faucet pipe in the lady's bedroom?
The heart of a resting adult pumps blood at a rate of 5.00 Liters/min.
a.) Convert this to cm3/ s.
b.) What is this rate in m3/s?
An irigation canal has a rectangular cross-section of 5 m width and 1.2 m depth. If water flows at a speed of 0.8 m/s, what is its flow rate?
A water pipe narrows from a radius of r1 = 4.99 cm to a radius of r2 = 2.75 cm. If the speed of the water in the wider part of the pipe is 1.31 m/s, what is the speed of the water in the narrower part?
A stone of mass 0.5kg is thrown vertically upward with velocity of 10m/s.
Find the potential energy at its greatest hight (h).
The kinetic energy on reaching the ground again (assume g=10m/s and neglect air resistance
Two balls are thrown simultaneously, A vertically upward with a speed of 20m/s from the ground , and B vertically downward from a height of 40m with the same speed along the same line of motion . At what point do two balls meet ?
