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A water pipe having a 2.4 cm inside diameter carries water into the basement of a house at a speed of 0.93 m/s and a pressure of 172 kPa. The pipe tapers to 1.8 cm and rises to the second floor 7.4 m above the input point. (a) What is the speed at the second floor? (b) What is the water pressure at the second floor?
A .115 kg mass undergoes simple harmonic motion on a horizontal spring with force constant k= 287 N/m. estimate the amplitude of the motion
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 115 m. Find the magnitude of the total force on the port
An air bubble inside an 8.70 cm -diameter plastic ball is 3.00 cm from the surface. how far beneath the surface does the bubble appear to be
A uniform cylinder of radius 11.8 cm and mass 28.1 kg is mounted so as to rotate freely about a horizontal axis that is parallel to and 5.90 cm from the central longitudinal axis of the cylinder. calculate what is the angular speed of the cylinder
A drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first springs, determine the weight of the block hanging from the third spring
You bring a 350-g wrench into the house from your car. The house is 15 C warmer than the car, and it takes 2.52 kJ of energy to warm the wrench by this amount. Find (a) heat capacity of the wrench and (b) specic heat of the metal it's made from.
The paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 39.86 m, y = 16.41 m, and t = 2.68 s.
A 120 V potential difference is applied to a space heater whoseresistance is 12 Ω when hot. (a) At what rateis electrical energy transferred to thermal energy?(b) What is the cost in cents for 6.0 h at US5.0¢/kW·h?
Suppose there is an astronaut who is traveling at a significant fraction of the speed of light. How long does it take according to the astronaut in years
There is force of F = 2.5N i + 3.5N j at r = 1.0m j - 4.0m k. What is the angle between the force vector and the radius vector
Solid rock suspended in air by spring scale has m=2.50 kg, When rock submerged in water, mass = 1.90 kg, determine Density of rock,
The following charges are located inside a submarine: 2.80 µC, ?9.00 µC, 27.0 µC, and ?76 µC. Calculate the net electric flux through the hull of the submarine
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