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A garden hose having an internal diameter of 0.800 in. ( 2.0320 cm ) is connected to a lawn sprinkler that consists merely of an enclosure with 27 holes, each 0.050 in. ( 0.1270 cm ) in diameter. If the water in the hose has a speed of 3.00 ft/s ( 91.440 cm/s ), at what speed does it leave the sprinkler holes?
A spherical balloon has a radius of 6.75m and is filled with helium. The density of helium is 0.179 kg/m3, and the density of air is 1.29 kg/m3. Determine the largest mass of cargo the balloon can lift
A small ball of mass 50 g is suspended from a string of length 66-cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 21? with the vertical, find the centripetal force experienced by ball. The acceleration of ..
Heat is another word for thermal energy. Dissimilar materials at the same temperature can contain different amounts of heat.
A 200-m-wide river flows due east at a uniform speed of 4.5m/s. A boat with a speed of 9.0m/s relative to the water leaves the south bank pointed in a direction 28o west of north. How long does it take for the boat to cross the river
A certain orthodontist uses a wire brace to align a patient's crooked tooth, Find the magnitude (in Newtons) of the net force exerted by the wire on the crooked tooth
Use approximate relationships to find the electric field at a point 4 cm from the axis, measured radially outward from the midpoint of shell.
A 2.50 syringe has an inner diameter of 4 , a needle inner diameter of 0.24 , and a plunger pad diameter (where you place your finger) of 1.2 cm. A nurse uses syringe to inject medicine into a patient whose blood pressure is 140/100.
A half-Atwood's machine consists of two masses, m1 = 8 kg and m2 = 5 kg, which are connected by a light string that passes over a pulley. what speed will it have just before hitting the floor
A 82-kg fisherman in a 114-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.6 m/s, find the velocity of the boat after the package is thrown
What inductance must be connected to a 25 pF capacitor in the oscillator capable of generating 480 nm (i.e., visible) electromagnetic waves.
To practice Problem-Solving Strategy 5.2 Dynamics problems. A 30.0kg- box is being pulled across a carpeted floor by a horizontal force of 230N, What is the acceleration of the box
A force vector points at an angle of 64.9 ° above the +x axis. It has a y component of +276 Newton's (N). Find out (a) magnitude and (b) x component of the force vector.
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