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A pump and its horizontal intake pipe are located 11.9 m beneath the surface of a reservoir. The speed of the water in the intake pipe causes the pressure there to decrease, in accord by Bernoulli's principle. Assuming non viscous flow, what is the maximum speed by which water can flow during the intake pipe?
A sky diver jumps out of a plane and falls freely for 7.8 seconds before opening the parachute. What is the sky diver's speed when the parachute opens
You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. Find the angle of incidence of the laser ray on the mirror
A 48.9 g ball of copper has a net charge of 3.0 µC. What fraction of the copper's electrons have been removed
1. an observer stands between two sound sources. source a is moving away from the observer and source b is moving
A suction cup works by virtue of a vacuum that is created within the cup. When the cup is pressed against a flat surface, most of the air is forced out, what is the pressure inside the suction cup
A newly planted tree is supported against the wind by a rope tied to a stake in the ground, as shown in the figure below. The forceof the wind, though distributed over the tree, is equivalent to asingle force F, as shown in the figure. Find theten..
a 1000 mw power plant is operated for a year. it has a thermal efficiency of 32 and a utilization factor of 0.8. assume
A spring (k = 1000 N/m) is used to launch objects across the floor. If the spring launches a 380 gram toy car with a speed of 17.6 m/s, how far was the spring compressed
At 25C, the resistance of a segment of gold wire is 61 ohm. When the wire is placed in a liquid bath, the resistance increases to 199ohm ?. What is the temperature of the bath
What is Seth’s angular position at = 3.2 measured counterclockwise from the top? Give your answer as an angle in degrees between 0 and 360 degrees.
Your friend's 15.2g graduation tassel hangs on a string fromhis rearview mirror. When he accelerates from a stoplight, thetassel deflects backward toward the rear of the car at an angle6.68 degrees relative to the vertical.
A large aquarium has portholes of thin transparent plastic with a radius of curvature of 1.95 m and their convex sides facing into the water. If the tooth has an actual length of 5.00 cm, how long does it appear to the observers
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