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A stainless-steel orthodontic wire is applied to a tooth, as in the figure below. The wire has an unstretched length of 3.34 cm and a radius of 0.14 mm. If the wire is stretched 0.12 mm, find the magnitude and direction of the force on the tooth. Disregard the width of the tooth and assume Young's modulus for stainless steel is 1.8 1011 Pa.
A tank of water sits at the edge of a table of height 2m. The tank springs a very small leak at its base, and water sprays out a distance of 1.4 m from the edge of the table. What is the water level h in the tank? (Assume the tank is open to the a..
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this?
A playground is on the flat roof of a city school, 4.6 m above the street below (see figure). The vertical wall of the building is h = 6.10 m high, forming a 1.5-m-high railing around the playground. Find the vertical distance by which the ball cle..
A certain transformer has 500 turns on the primary. If 10 volts are applied to the primary, what was the current in the primary
In an interstellar gas cloud at 48.2 K, the pressure is 1.16 x 10-8 Pa. what is their mean free path
An electron traveling horizontally to the right enters a region where a uniform electric field is directed downward. What is the direction of the electric force exerted on the electron once it enters the electric field? A. to the left B. to the ri..
A town is installing a new 10” main to carry drinking water. The only section remaining to be installed is a segment through the middle of town. Calculate the length of pipe required for the pipe system.
explain Which ball will hit the ground first.
A 60kg boy and a 45 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 2.3 m/s2, find the magnitude of the acceleration of the boy toward the girl.
A 200 gram mass is hung from a spring. The weight of the mass stretches the spring by 25 cm. What is the characteristic frequency of this mass-spring system?
You're an optometrist, mounting a projector at the back of your 4.2m -long exam room, 2.6 m above the floor. At what height should you center the pattern on the wall
A proton is traveling due west with a speed of 4E5 m/s and enters a magnetic field of 5E -5 T directed at 30.0 degrees to the direction of the proton's motion, obtain the magnitude and direction of the force on the proton
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