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Suppose that you wish to mold a uniform wire from 1.50 g of copper. The wire needs to have a resistance of 0.0400 ohm's, adn all of the copper needs to be used.
(a) What should be the length of the wire?
(b) What should be the diameter fo the wire?
At 500°C, the diffusion coefficient of Zn in brass is 4.10-17 m2.s-1. What is the flux of Zn moving down the rod.
The impact on light fixture swing
How many elections Paris would we have to remove before the electrostatic repulsion between the earth and moon would go over their gravitational attraction.
A 52.1-kg high-school student hangs from an overhead bar with both hands, What is the tension in each arm when the arms make an angle of 31.00 o with respect to the vertical
A soccer player kicks the ball off the ground at an angle ? above the horizontal. The ball is in the air for 3.0 seconds, Find the soccer ball's initial horizontal (vox) velocity component
A 131 kg sign hangs between two buildings by two cables. Cable 1 is attached at a 36 degree angle wrt to the horizontal, and Cable 2 is attached at a 24 degree angle wrt to the horizontal. What is the tension in cable 1.
A person weighing 700N on a wire. find the tension force in the two segments of the wire. left wire 20 degrees and right wire 40 degrees.
What is the speed of the bullet.
A bob of mass m = 0.300kg is suspended from a fixed point with a massless string of length L = 21.0cm, What tangential speed v must the bob have so that it moves in a horizontal circle with the string making an angle 24.0
How much force must the elbow exert?What is the horizontal distance between the elbow and the point where the weight of the forearm acts?
A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.50 m/s collides head-on with a 0.84 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
a 50 kg toy airplane is suspended from the ceiling by a 1.6m cord and rotates in a horizontal circle. If the cord makes an angle of 35 degrees with the vertical, A) Find the speed of the plane B) Find the tension in the cord
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