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A dentist uses a spherical mirror to examine a tooth. The tooth is 1.06 cm in front of the mirror, and the image is formed 11.4 cm behind the mirror. (a) Determine the mirror's radius of curvature. _____ cm (b) Determine the magnification of the image
What actually causes a Cepheid to vary in apparent brightness?
A paper filled capacitor is charged to a potential difference of 2.1 V and then disconnected from the charging circuit. The dielectric constant of the paper is 3.7. Find the resulting potential difference off the capacitor
At takeoff, a commercial jet has a speed of 60.0 m/s. Its tires have a diameter of 0.850 m. At how many rpm are the tires rotating
A 45.6-kg girl is standing on a 155-kg plank. Both originally at rest on a frozen lake that constitutes a frictionless, flat surface. The girl begins to walk along the plank at a constant velocity of 1.40 m/s relative to the plank. (a) What is the ve..
Assuming that the bond energy holding together a water molecule is typical, use table below to estimate how various molecular bonds might be broken with this energy.
A diverging lens (f = -12.0 cm) is located 24.0 cm to the left of a converging lens (f = 32.0 cm). What is the height of the final image
A girl of mass m is taking a picnic lunch to her grandmother. She ties a rope of length R to a tree branch over a creek, What is the minimum breaking tension for the rope
A 110 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.0760 m/s
Two objects of the same mass, m = 1.00 kg, are projected towards each other. The first object initially has velocity (20.0m/s)i^. What is the change in kinetic energy in the collision
Two identical capacitors store different amounts of energy: capacitor A stores 2.7 x 10-3 J, Find the voltage across the plates of capacitor A
Find the critical angle for an optical fiber whose core has n value of 1.50 and whose cladding has n value of 1.15
A wheel rotates through an angle of 13.8rad as it slows down from 22.0 rad/s to 13.5 rad/s. what is the magnitude of the angular acceleration of the wheel
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