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A drinking fountain projects water at an initial angle of 50 degrees above the horizontaland the water reaches a maximum height of 0.15 m above the point of exit. Assume air resistance is negligible.a) Calculate the speed at which the water leaves the fountain.b) The radius of the fountain's exit hole is 4.00 x 10^-3 m. Calculate the volume flow rate of the water.c) The fountain is fed by a pipe that at one point has a radius of7.00 x 10^3 m and is 3.00 m below the fountain's opening. The density of water is 1.0 x 10^3 kg/m3. Calculate the gauge pressure in the pipe at this location.
A 1000-kg car travelling at a speed of 32 m/s skids to a halt on wet concrete where f_k = 0.3. How long are the skid marks.
A string attached to an oscillator at one end forms 5 nodes (counting the two ends) and produces a frequency of ? = 1.5 kHz. What is the linear density of the string
A laboratory vacuum pump can reduce the pressure to 1.0 × 10^-7 Pa. If the volume of the chamber is 0.500m^3 and the temperature is 27°C
Equal masses of 0 oC ice and 100 oC steam are mixed together to form water. What is the final temperature of the water
Two rockets approach earth from opposite directions at equal speeds relatie to the earth, How fast are the rockets going with respect to earth
A force of 315 N is applied horizontally to a wooden crate in order to displac eit 35.0 m accorss a level surface at a constant velocity. As a result of this work the crate's internal energy is increased by an amount equal to 14 percent of the cra..
A brick of mass 1.21 kg is attached to a thin (massless) cable and whirled around in a circle in a vertical plane. What is the maximum speed the brick can have at the bottom of the circle before the cable will break
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. What is the amplitude A of each wave
Friction and air resistance are negligible. Illustrate what speed does the ball have when the cable makes an angle of 30 degrees with respect to the vertical?
Light from an argon laser strikes a diffraction grating that has 5345 grooves per centimeter. Determine the wavelength of the laser light
The engine of a large ship does 2.10 ? 108 J of work with an efficiency of 4.00%. How much waste heat is produced
How fast would it be moving after it had fallen a distance of 0.010-m? (Assume that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)
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