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What gauge pressure must a pump produce to pump water from the bottom of the Grand Canyon (elevation 730 ) to Indian Gardens (elevation 1370 )? Express your result in pascals and in atmospheres.
Two sounds have intensities of 2.10×10-8 and 8.70×10-4 W/m2 respectively. What is the magnitude of the sound level difference between them in dB units
a spherical shell of radius r carries a uniform charge q. what is the potential at the center of the
A block of wood (density=.50 grams/cm^3) is floating in oil (density=0.75 grams/cm^3). the mass of the wood is 1500 grams. Determine the volume of the oil displaced
A wire carries a steady current of 2.20 A. A straight section of the wire is 0.750 m long, what is the magnetic force on the section of wire
A 10000 kg boxcar traveling at 16 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 6.0 m/s. What is the mass of the second car
Light from a hydrogen discharge passes through a diffraction grating and registers on a detector 1.5 m behind the grating. find the position of the second member of the Paschen series
A 120 g ball moving at 0.45m/s in the +x-direction is subject to a 0.15 N force in the -y-direction for 3.0 s. Find the ball's final speed
q1. a 4.00-kg model rocket is launched expelling 54.9 g of burned fuel from its exhaust at a speed of 690 ms. what is
A system consists of 3.0 kg water at 80 degrees Celsius 30 J of work is done on the system by stirring with a paddel wheel, What is the change in internal enery of the system
A rifle has a mass of 5.38 kg and it fires a bullet of mass 12.0 g at a muzzle speed of 827 m/s. What is the recoil speed of the rifle as the bullet leaves the gun barrel
An airplane travelling 1001 m above the ocean at 125km/hr is to drop a box of supplies to shipwrecked victims below. How various seconds (t) before being dropped directly overhead should the box be dropped.
To measure the static friction coefficient between a 4.33-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 461 N/m) is attached to the block.
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