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a) To fill a child's backyard inflatable wading pool you use a garden hose with a diameter of 2.9 cm. Water flows from this hose with a speed of 1.3 m/s. How long will it take to fill the pool to a depth of 29 cm if it is circular and has a diameter of 3.2 m?
b) If there is a section of the hose where the diameter decreases to 1.93 cm, what is the speed of the water in this section?
Find out the maximum height reached by the rocket.
What minimumdistance are they from each other? The angle may be too large to use small angle approximation. suppose in units of m.
What is water speed along the boat during the vertical cross
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you find in part (a). Illustrate what should be the maximum speed of the car so it can round the curve safely?
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
A slab of glass with an index of refraction of 1.55 is submerged in a liquid with an index of refraction of 1.25. Find the angle of refraction for the angle of incidence of 60°
A blower releases a ball down the lane with a linear velocity at release of 12 meters per second. what was the angular acceleration of the arm to the release point
A charge of -4.00 nC and a charge of -6.10 nC are separated by the distance of 60 cm. Find out the position at which a third charge of +7.90 nC can be placed so that net electrostatic force on it is zero.
Radioactive isotopes often occur together in mixtures. assume a 480 sample contains , with a half-life of 12 days, and , with a half-life of 4.5 days.
How does hydrogen bonding affect large molecules like proteins? What shapes do proteins take because of this effect?
What are the following values about the central axis at the instant the torque has been applied for 195ms? The angular momentum of disk.
Compact fluorescent bulbs are much more efficient at producing light than are ordinary incandescent bulbs. They initially cost much more, but last far longer and use much less electricity.
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