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A fountain consists of a large pool of water and a column of waterprojected upward by means of a pump. The column has across-sectional area of 114 cm2at its base and reaches a height of 2.30m.
a) Compute the flow rate of water as it leaves the pool._________ liters/sb) Find the increase in mechanical energy per unit massΔE/Δm, as water starts from rest inthe pool and then is expelled by the pump._________ J/kgc) Find the power supplied by the pump by computing the increasein mechanical energy per unit time.____________ W
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A 1055 kg van, stopped at a traffic light, is hit directly in the rear by a 710 kgcar traveling with a velocity of +2.05m/s. Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. Wha..
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a projectile is fired from a submarine traveling horizontally at 20 ms with respect to the water as shown in the figure
a plate carries a charge of -2.6 microc while a rod carries a charge of 2.4 microc. how many electrons must be
IP Halley's Comet Halley's Comet, which passes around the Sun every 78 years, has an elliptical orbit. When closest to the Sun (perihelion) it is at a distance of 8.823 x 10^10 m and moves with a speed of 54.6 km/s. The greatest distance between Hall..
An electron in a cathode-ray tube is emitted from a hot filament at a negligible speed. , whereupon it accelerates across a potential difference of 1.00 x 106 V. Determine its final speed compared to the classical result.
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