Physics, 30.11.2019 00:31 krystabrewer3

Water flows through a water hose at a rate of q1 = 860 cm3/s, the diameter of the hose is d1 = 1.85 cm. a nozzle is attached to the water hose. the water leaves the nozzle at a velocity of v2 = 10.8 m/s.
a. enter an expression for the cross-sectional area of the hose, a1, in terms of its diameter, d1.
b. calculate the numerical value of a1, in square centimeters.
c. enter an expression for the speed of the water in the hose, v1, in terms of the volume flow rate q1 and cross-sectional area a1.
d. calculate the speed of the water in the hose, v1 in meters per second
e. enter an expression for the cross-sectional area of the nozzle, a2, in terms of v1, v2 and a1.
f. calculate the cross-sectional area of the nozzle, a2 in square centimeters.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 16:50, Walkman2092

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.

Answers: 2

continue

Physics, 22.06.2019 19:20, gokusupersaiyan12345

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c. m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?

Answers: 1

continue

Physics, 22.06.2019 20:50, isarahweller103

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?

Answers: 1

continue

Physics, 23.06.2019 01:30, michellermccarty

Listed following are various physical situations that describe how light interacts with matter. match these to the appropriate category. 1) transmission? -visible light meets clear glass -visible light does not pass through a black wall -red light hits a red sweatshirt -light comes from your computer screen -cell phone signals pass through walls -blue light hits a red sweatshirt -white light hits a white piece of paper -light comes from a light bulb

Answers: 1

continue

You know the right answer?

Water flows through a water hose at a rate of q1 = 860 cm3/s, the diameter of the hose is d1 = 1.85...