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Water is pumped from a depth of 10 m and delivered through a pipe of cross section 10-2 m2 upto a height of 10 m. If it is needed to deliver a volume 0.2 m3 per second, find the power required.
Four persons, each with a mass of 73.1 kilogram, are in a van with a mass of 1150 kilogram. An earthquake strikes. Find by what distance does the car undamaged suspension lifts the car body as the people get out
A stone is tied to the end of a string and is swung with constant speed around a horizontal circle with a radius of 1.5 m. If it makes two complete revolutions each second, its acceleration is
a metal ball with a mass of 4.01middot10-6 kg and a charge of 4.99 mc has a kinetic energy of 7.95middot108 j. it is
A conductor bar ab of length 0.6 m is moving on two conducting rails with a speed v = 3.6 m/s perpendicular to a uniform magnetic field of B = 0.35 T. find the electromotive force in the bar
q1. if air drag is negligibly small how fast is sequoia cone moving while it reaches the ground if it dropped from the
What is the angular acceleration of the turntable
A gas is allowed to expand isothermally until it reaches its final volume and its pressure is 2.97 atm. Find the heat absorbed by the gas during this process
What is the difference between series and parallel circuits? Specify in words and algebraic formula, if possible, the relationships between current, voltage, and resistance in each type of curcuit.
a distant galaxy emits light that has a wavelength of 550.5 nm. on earth the wavelength of this light is measured to be
Io, a satellite of Jupiter, has an orbital period of 1.77 days and an orbital radius of 4.22 105 km. From these data, determine the mass of Jupiter
The tune of a string instrument will change if it is heated or cooled because the different materials expand or shrink in different ways, resulting in changes in tensions. Calculate by how much each will shrink if both are initially 33 cm long
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.
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