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A garden hose of inner radius 0.5 cm carries water at 2.0 m/s. The nozzle at the end has radius 0.20 cm. How fast does the water move through the nozzle?
A 0.410 kg pendulum bob passes through the lowest part of its path at a speed of 3.13 m/s. What is the tension in the pendulum cable at this point if the pendulum is 76.2 cm long.
A shoe store uses small floor-level mirrors to let customers view prospective purchases. At what angle from vertical must such a mirror be inclined so that a person standing 59 from the mirror with eyes 142 off the floor can see her feet.
A satellite is in elliptical orbit with a period of 6.12 x 104 s about a planet of mass 8.14 x 1024 kg. What is its angular speed at apocenter
A 2000 Hz sound wave passes through a wall with two narrow openings 30 cm apart. If sound travels on average 345 m/s, What is the angle of the first order maximum
A proton moves perpendicularly to a uniform magnetic field at 5.0 107 m/s and exhibits an acceleration of 1.0 1013 m/s2 in the +x-direction when its velocity is in the +z-direction. find the magnitude and direction of the field.
A soldier has a huge contraption that notches a large 2 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
An inductor is to be made by wrapping wires around a paper tube of radius 0.702 cm and length 8.44 cm. How many turns will give the inductor an inductance of 6.000e-3 H
q1. a pet-store supply truck moves at 25ms north along a highway. inside a dog moves at 1.85ms at an angle of 35deg
A 4.90-kg ball, moving to the right at a velocity of +2.14 m/s on a frictionless table, Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
Your cell phone typically consumes about 440 mW of power when you text a friend. what is the current flowing through the cell-phone circuitry under these circumstances
An armadillo and Earth attract each other gravitationally. Which experiences the greater gravitational force, or do they experience the same force magnitude?
A 2kg ball moving east with a speed of 3m/s collides with another 3kg ball moving west with a speed of 4m/s . After the collision the two balls stick together
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