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A garden hose has an internal diameter of 1.5 cm. It's connected to a sprinkler that consists merely of an enclosure with 14 holes, each 0.20 cm in diameter. The water in the hose moves with a speed of 3.0 m/s.
a. At what speed does it leave the sprinkler?
b. How long does it take for the lawn to recieve 2m^3 of water?
A solid weighs 300N. Calculate the pressure exerted by the solid when it is kept on a glass surface, if the area of contact is 700cm2 . solve the numerical.
A king orders a gold crown having a mass of 0.68 kg. When it arrives from the metalsmith, the volume of the crown is found to be 145 cm^3
A 115 granite cube slides down a 35 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest.
Elements that appear in the same column of the periodic table often share similar chemical properties. In the case of the alkaline earth metals, calculate the path radius of the Ca ion
a girl who weighs 720 N rides on a FErris wheel of radius 7.5 m. when at the top of the wheel her effective weight is 600 N. Find out her speed and the angular speed of the wheel
A speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. The belt of one speed ramp moves at a constant speed such that a person who stands still on it leaves the ramp 66 s after getting on.
What is the rms current in an RL circuit when a 60.0Hz 240V rms ac voltage is applied, where R = 1.80k? , and L = 420mH?, What is the phase angle between voltage and current
What is the wavelength of the waves emitted by source? What is the difference in frequency between directly radiated waves and the waves reflected from a whale travelling straight toward the ship at 4.99? Suppose that the ship is at rest in the water..
When red light in a vacuum is incident at the Brewster angle on a certain type of glass, the angle of refraction is 39.0°. What is the index of refraction of the glass
A race car can be slowed with a steady acceleration of -11 m/s2 if the car is going 55m/s how many meters would it travel before it stops.
A series RLC circuit is connected across a 10.0 kHz source. The 1.2 H inductor and 1000 ? resistor are fixed whereas the capacitor is variable. What average power will be dissipated
A high-speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs. The flywheel has mass 37.0kg and diameter 71 cm. The power is off for 27.0s and during this time the flywheel slows due to friction in its axle bearings...
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