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A stainless-steel orthodontic wire is applied to a tooth that is out of line by 40 degrees . The wire has an unstretched length of 4.4 cm and a diameter of 0.2 mm. If the wire is stretched 0.1 mm , find the magnitude of the force on the tooth. (Disregard the width of the tooth). Young's modu- lus for stainless steel is 1.8 × 1011 Pa .
illustrate a diagram to show the forces acting on the aircraft while it is flying in a horizontal circle with its wing banked at an angle to horizontal.
A 9 m, 260-N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.5, and the ladder makes a 50° angle with the ground. How far up the ladder can an 800-N person climb before the ladd..
A certain string just breaks while it is under 25 N of tension. A boy uses this string to whirl a 0.75-kg stone in a horizontal circle of radius 2.00 m. The boy continuously increases the speed of the stone. At about what speed will the string bre..
A ball of radius 37 cm is rolling down an inclined plane with no slipping. What is the balls angular acceleration at the bottom of the inclined plane
With what minimum speed must you toss a 160 g ball straight up to hit the 10 m high roof of the gymnasium if you release the ball 1.60m above the ground? Solve this problem using energy.
They then turn together around the spindle with their centers superposed. What is an angular frequency in of the combination.
A 5.25 kg ball of clay is thrown downward from a height of 2.79m with a speed of 4.41 m/s onto a spring with k=1530 N/m. The clay compresses the spring a certain maximum amount before momentarily stopping.
An Escort and a Camaro traveling at right angles collide and stick together. The Escort has a mass of 1300 kg, What was the speed of the Camaro
What is the kinetic energy
Pulling down on a rope, you lift a 4.49 kg bucket of water from a well with an acceleration of 1.50 m/s2. What is the tension in the rope.
If the gas in a container absorbs 293 J of heat, has 106 J of work completed on it and after that does 35 J of work, what is the enhancement in the internal energy of the gas.
The center of a 1.40km diameter spherical pocket of oil is 1.5 km beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from expected value of g for a uniform Earth? Assume the density of oil is 8.0 ..
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