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Question: Two similar centrifugal pumps are specific by the diameter of the impeller DK]. The pumps are specified by their flow rate Q[L3/t] and the pump head H b]. The size of a pump for a given head and flow rate is determined by an equation of the form
a 6.1 microc charge is placed at the origin and a -3.8 microc charge is placed at x 25 cm. at what coordinates can a
A uniform steel beam of length 5.00m has a weight of4.50*103 N. One end of the beam is bolted to avertical wall. The beam is held in a horizontal position by acable attached between the other end of the beam and a point on the wall.
An aeroplane has wings with a surface area of 34 m2. The shape of the wings are such that air moving over the top of them travels 20% faster than the velocity of the air under the wing, what is the take-off speed of the plane
An LCR circuit contains a resistor with R =4200 Ω, a capacitor withC = 6000 µF, and aninductor with L = 2.0 mH, allconnected in series. The AC source has a frequency of 75 kHz.
A mass of 12 kg is placed on a friction less incline with an additional force of 79 Newtons applied parallel to the incline, down the incline. With the force applied, the magnitude of the normal force is a factor of 1.8 times less than the weight..
A rock thrown with speed 10.5 and launch angle 30.0(above the horizontal) travels a horizontal distance of = 18.0before hitting the ground. Find the height (yi) from which the rock was launched
The electromagnetic waves used in a microwave oven has a wavelength of 13.34 cm. What is the frequency of this radiation
Photons of wavelength 58.0 pm are Compton-scattered from a free electron in an aluminum block, at 75.0o from the original direction. What energy (in electron volts) has been imparted to each electron
Physics - Heisenberg Uncertainty Principle - Marble Drop (Q 1) Scenario: You are going to drop a marble with mass m from the top of a building of height H onto a small target below it. 1) Obtain an expression for the time it takes for the marble to f..
a he ion is placed in an excited state so that its remaining electron occupies the n5 state. the electron can make a
The photoelectric threshold wavelength of a tungsten surface is 272. Calculate the maximum kinetic energy (in ) of the electrons
a person takes a trip, driving with a constant speed of89.5km/h except for a 22 min rest stop. how much time is spent on the trip
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