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Water flowing through a garden hose of diameter 2.73 cm fills a 22.0 L bucket in 1.20 min.
a) What is the speed of the water leaving the end of the hose?
b) A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle?
A semi-infinite rod carrying a uniform charge distribution of lambda coulombs per meter lies along the positive x axis from x = 0 to x = infinity. Find the components of the electric field at the point with coordinates x, y, and z = 0
A laser pulse has an energy of 24 J and a beam radius of 2 mm. Find the rms values of the electric and magnetic fields in the pulse
A 48 g piece of ice at 0.0 degree C is placed in an insulated calorimeter of negligible heat capacity containing 100 g of water at 100 degree C. What is the final temperature of the water once thermal equilibrium is established? Find the entropy chan..
A 1000-kg car is moving at 30.0 m/s around a horizontal curve whose radius is 100 m. What is the magnitude of the frictional force
A rectangle has an area of 28.14 cm2. When both the length and width of the rectangle are increased by 1.80 cm, Calculate the length of the longer of the two sides of the initial rectangle
A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.75 km/hr. The child is 0.560 km from shore and 0.750 km upstream of a boat landing when a rescue boat sets out. If the boat proceeds at its maximu..
Consider two slabs of material with the same thickness, however made of different materials differing in their index of refraction. Which of the following are true? The frequency of light will differ in the two slabs. The speed of light will differ i..
A 17.00 kg block is pushed up a frictionless inclined plane that makes an angle of ? = 33 o with the horizontal direction. What force is needed to move the block with constant speed
A 140-m-wide river flows due east at a uniform speed of 3.9 m/s. A boat with a speed of 7.8 m/s relative to the water leaves the south bank pointed in a direction 39o west of north. How long does it take for the boat to cross the river
A tank of volume 0.5 m^3 contains oxygen at a measure of 1.5 x 10^6 Pa and a temperature at 20 degrees C. How many kilomoles of oxygen are in the tank
The isotope of lithium used in a hydrogen bomb is Li-6, whose nucleus contains 3 protons and 3 neutrons. When a Li-6 nucleus absorbs a neutron, a nucleus of the heaviest hydrogen isotope, tritium (H-3), is produced.
a steep cliff west of lydias home reflects a 980-khz radio signal from a station that is 68 km due east of her home. if
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