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Question: A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 15.4 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.
A solenoid is wound with a single layer of insulated copper wire of diameter 2.000 mm and has a diameter of 5.000 cm and is 1.800 m long. How many turns are on the solenoid
a sample of an unknown material appears to weigh 280 n in air and 175 n when immersed in alcohol of specific gravity
An intern pushes a 72 kg patient on a 15 kg gurney, producing an acceleration of 0.60 m/s2. How much work does the intern do by pushing the patient and gurney through a distance of 2.5 m
A tether ball of mass 0.40 kg is attached to a vertical pole by a cord 1.5 m long. Assume the cord attaches to the center of the ball. The cord makes an angle of 20° with the vertical. (a) What is the tension in the cord? . N (b) What is the speed of..
A particle of positive energy approaches the square well illustrated in fig from the left. some of the wave will be transmitted and some will be reflected. calculate the transmission amplitude.
Three forces act on a moving object. One force has a magnitude of 68.2 N and is directed due north. find the direction of the third force, such that the object continues to move with a constant velocity
Light bulb 1 operates with a filament temperature of 2400 K, whereas light bulb 2 has a filament temperature of 1600 K. Find the ratio A1/A2 of the filament areas of the bulbs
A 0.450-kg ice puck, moving east with a speed of 5.46m/s, What is the speed of the 0.450-kg puck after the collision
If a spaceship is approaching the earth at 0.18c and a message capsule is sent toward it at 0.46c relative to the earth, what is the speed of the capsule relative to the ship
consider a 3-dimensional ideal gas of n particles at temperature ti with an initial volume vi. you adiabatically
A 2.0 mm-diameter glass bead is positively charged. The potential difference between a point 2.2 mm from the bead
An adventurous archaeologist crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope (See the figure). The rope will break if the tension in it exceeds 3.00×..
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