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Water flowing in a horizontal pipe is at a pressure of 1.55 105 Pa at a point where its cross-sectional area is 6.00 m2. When the pipe narrows to 0.400 m2, the pressure drops to 1.16 105 Pa. Find the water's speed in the wider pipe.
A worker on top of a radar tower 22.4 ft high drops a wrench off the tower. What is the speed of the wrench when it hits the ground
A spotlight at the bottom of a pool emits a cone of light upward 22 degrees wide. n= 1.33, How wide (as angle w) is the cone of ligh outside of the pool
The electric field at a distance o f0.145m from the surface of a solid insulating sphere with radius 0.355m is 1750 N/C. Calculate the electric field inside the sphere at a distance of 0.200m from the center
A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 12.9 m/s. How high does the ball rise
At point A, 3,00 m from a small source of sound that is emitting uniformly in all directions, the sound level is 53.0 dB. what is the intensity of the sound at point A
The electron beam inside a television picture tube is 0.4 mm in diameter and carries a current of 55 µA. What is the power delivered to the screen by the electron beam
You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 31 kg. The rope is at an angle of 30 degrees to the ground. As you pull with a force of 30 N, the sled travels a distance of 45 m.
What is the largest wavelength that will give constructive interference at an observation point 171 from one source and 295 from the other source.
What is the electric field strength at midpoint between two disks.What is the electric field strength a point on axis 5.0 cm from one disk between them.
A clay vase on a potter's wheel experiences an angular acceleration of 7.70 rad/s2 due to the application of a 10.7-N · m net torque
Radioactive decay of granite and other rocks in the Earth's interior provides sufficient energy to keep the interior molten, heat lava, and supply warmth to natural hot springs.
Sam's speed at the bottom is 35.0. Illustrate what is the coefficient of kinetic friction of his skis on snow?
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