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A garden hose has an inside diameter of 16 mm. The hose can fill a 10 L bucket in 20 s.
a. What is the speed of the water out of the end of the hose?
b. What diameter nozzle would cause the water to exit with a speed 4 times greater than the speed inside the hose?
The position of a particle is given in cm by x = (5) cos 5?t, where t is in seconds. Find the maximum acceleration of the particle
A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
A toaster uses a nichrome heating wire. When the toaster is turned on at 20 degrees Celsius, the initial current is 1.5 amps. a few seconds later the toaster warms up and the current now has a value of 1.3amps.
An object with height h, mass M, and a uniform cross-sectional area A floats upright in a liquid with density p. Calculate the vertical distance from the surface of the liquid to the bottom of the floating object at equilibrium.
a 1.0 kg object is moving with a constant velocity 2.0 m/s toward the north. what is the second force that acts on the object
A 1200 car is moving on the freeway at 60.0 . What is the magnitude of its momentum in SI units? What is the magnitude of its kinetic energy in SI units. how much kinetic energy does it have
A 430 microF capacitor is charged to 245 V. after that a wire is connected between the plates. How many joules of thermal energy are produced as capacitor discharges if all of the energy that was stored goes into heating the wire.
A 2.0 mm -diameter glass bead is positively charged. The potential difference between a point 2.1 mm from the surface of the bead and a point 4.4 mm from the surface of the bead is 500 V. What is the charge on the bead?
A flying wing of cross-sectional area 1100sq.meters and mass 220,000kg is level at Sea Level. The engines are producing 214,000N of thrust and the air resistance is 155,000N. When the thrust is applied, the air flows over the wing at 314m/s and be..
Interactive LearningWare 18.2 provides one approach to solving problems such as this one. Determine the net force exerted on q1 by the other two charges
An electron and a positron (an anti electron) make a head-on collision, each moving at v = 0.9999c. What is the kinetic energy of each of the muons
A wheel with a tire mounted on it rotates at the constant rate of 2.59 times a second. A tack is stuck in the tire at distance 31.7 cm from the rotation axis. Noting that for every rotation the tack travels one circumference, find the tack\'s tangent..
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