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A certain wire stretches 0.980 cm when an outward force of magnitude F is applied to each end. The same force is applied to a wire of the similar material however with tree times the diameter and with three times the length. By how much will the second wire stretch?
At t = 0, a particle leaves the origin with a velocity of 12 m/s in the positive x direction and moves in the xy plane with a constant acceleration of (-2.0i+4j) . At the instant the y coordinate of the particle is 18 m, illustrate what is the x ..
an air-filled lead balloon of radius r is totally submerged in a tank of water. a show that the thickness of the skin
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.5 m/s . Two seconds later the bicyclist hops on his bike and accelerates at 2.4m/s2 until he catches his friend. How much timedoes it take until h..
The current in an electromagnet connected to a 250 V line is 16.0 A. At what rate must cooling water pass over the coils if the water temperature is to rise by no more than 5.0 degrees Celsius?
At the bottom of the slope, the path levels out and become horizontal, the snow becomes less icy, and the skier begins to slow down, coming to rest in a distance of 160.00 m along the horizontal path.
a 1 kg projectile is shot straight up from the earths surface with a velocity of 100 ms and reaches a height of 300 m
A 20-kg child swings back and forth on a swing such that her height h in m from the ground as a function of x is described by: h(x) = 0.5 + 0.45x2 for -1.2 m ? x ? 1.2 m, What is the maximum potential energy of the child
A wooden block weighing 7 N is at rest on top of a wooden desk. The coefficient of static friction between the block, Find the minimum horizontal force required to move the block
An object is accelerated by a force. If the acceleration increases by a factor 2 and the mass increases by a factor 3, by what factor was the force increased? The answer must be exact.
A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d. The inner shell has the total charge of -1q and outer shell has a total charge..
A camber carriers her drinks in an ice chest made of styrofoam. The chest is 40 cm x 45 cm x 70 cm, and the walls and lid are 2.5 cm thick. What is the rate of heat flow through the walls of the box
state how much energy is transferred in each of the following casesa. 2 grams of steam at 100 degrees celsius condenses
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