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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?
The camel walks at the uniform speed 4.53 km/hr along a straight line in the direction 39.7? north of East (only the camel knows why he chose that particular direction). Explain how long will it take the camel to cross the desert?
Sound is coming through an open window whose dimensions are 1.1 m x 0.75 m. How much sound energy comes through the window in one hour
A 4lb block and a 13lb block, connected by a string slide down a 30 degree inclined plane. The coefficient of kinetic friction between the first block mentioned is 0.10; between the second block and the plane it is 0.20. Find the tension(in pounds) i..
A 1.10 kg water balloon is shot straight up with an initial speed of 4.10 m/s. What is the kinetic energy of the balloon just as it is launched
When a thin slab of semiconducting material is illuminated with monochromatic electromagnetic radiation, Determine the energy gap of the semiconductor
A metal sphere of radius 5.00 cm is initially uncharged. How many electrons would have to be placed on the sphere to produce an electric field of magnitude 1.51 105 N/C at a point 8.28 cm from the center of the sphere?
A Carnot engine extracts 850 J from a 600 K reservoir during each cycle and rejects 450 J to a cooler reservoir. Find the temperature of the cool reservoir
A person pushes a 16.0 kg shopping cart at a constant velocity for a distance of 26.0m. what is the magnitude of the force that the shopper exerts
q1. a tennis ball is served at 73.12 ms and was in contact with the racquet for .027 s and starts from rest. the ball
You & your friend peter are putting new shingles on a roof pitched at 25 degrees. You are sitting on the very top of the roof when peter, who is at the edge of the roof directly below you, 5.1m away, asks you for the box of nails. Rather than carr..
How do excitation and emission take place in atoms? What is an absorption spectrum, What is the function of a spectrometer
an organ pipe open at both ends is vibrating with n 3 with a frequency of 769 hz. the length of the pipe is 0.5 m.
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