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A garden hose having with an internal diameter of 2.0 cm is connected to a (stationary) lawnsprinkler that consists merely of an container with 23 holes, each 0.20cm in diameter. If the water in the hose has a speed of0.95 m/s, at what speed does it leavethe sprinkler holes?
m/s
The ems of an AC circuit has an rms value of 120V. What is the maximum positive emf
A device uses a Stirling cycle on 391 moles of a monatomic ideal gas between two reservoirs with temperatures of 395 K, How much energy does this device remove from the cold reservoir
Two coils are close to each other. The first coil carries a time-varying current given by I(t) = (5.80 A) e-0.0250tsin(377 t). What is the mutual inductance of the coils
An object weighs 302 N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 220 N. When it is immersed in oil, it weighs 257 N. what is the density of the object.
A 2.00 kg block is placed against a spring on a frictionless30.0 degree incline. What is the change in the gravitational potential energyof the block-Earth system
Three charges are at rest on the z axis: q1 = ?7.21 mC at z = 4.58 m, q2 = ?1.79 mC at z = 0 m, What is the potential energy of this system
Your telescope has an objective lens with a focal length of 1.0 m. You point the telescope at the moon, only to realize that the eyepiece is missing. What is the angular magnification of the moon
A satellite circles the earth in an orbit whose radius is 2.78 times the earth's radius. What is the period of the satellite
An x-ray tube is operated at 40600 V. Calculate the minimum wavelength of the radiation emitted by this tube. find the spacing between reflecting planes in the crystal
Ultrasound intensity level: Beta = 10Log (I2/I1), I1 and I2 = intensity at different locations/times An ultra sound signal is sent under sea water (v=1530m/s) to detect the location of an object. Determine the location of the object from the source
A positive charge +q1 is located to the left of a negative charge -q2. ON a line passing through the two charges, there are two places where the potential is zero. The first place is 4.00 cm to the left of the negative charge.
A person takes in a breath of -2 degrees C air and holds it until it warms to 37.5 degrees C. Determine the work done by the air on the lungs
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