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A dentist uses a mirror to examine a tooth. The tooth is 1.16cm in front of the mirror, and the image is formed 12.1 cm behindthe mirror.
a) Determine the mirror's radius of curvature.b) Calculate the magnification of the image.
Suppose that the bike rider in problem 15 pedaled up the hilland never came to a stop. in what system is energy conserved? from what form of energy did the bike gain mechanial energy?
A sphere of radius 1.0 cm is dropped into a glass cylinder filledwith a viscous liquid. The mass of the sphere is 12.0 g and thedensity of the liquid is 1200 kg/m3. The sphere reaches a terminalspeed of 0.15 m/s. What is the viscosity of the liquid?
Two long, parallel wires are separated by a distance of 2.1 cm. What is the current in the second wire? Express the answer with two decimal places
The angular speed can be represented as ? = (rad/s)(1 rev/2p rad) = 2.53e7 rev/s. The electrons travel around a circle of radius .07m, 25 million times per second. What is the period of revolution of the electrons
Four solid plastic cylinders all have radius 2.75 cm and length 6.42 cm. Find the charge of each cylinder given the following additional information about each one.
a 360g block hangs from a spring with k5.19 nm. at t0s the block is 18.4 cm below the equilibrium position and moving
Using a highly sensitive parabolic sound collector, Amy records the frequency of a tuning fork as it drops into the Grand Canyon. She drops the vibrating tuning fork from rest at t=0. She records a frequency of 1657.0 Hz at t=6.400 s.
A 0.12 m3 rigid tank initially contains refrigerant R-134a at 1 MPa and 100% quality. find the mass of the refrigerant that has entered the tank
A 24.0 g copper ring at 0.000°C has an inner diameter of D = 2.54000 cm. An aluminum sphere at 103.0°C has a diameter of d = 2.54508 cm. What is the mass of the sphere
A 0.15 kg baseball collides with a 1.0kg bat. The ball has a velocity of 40 m/s immediately prior to the collision. Estimate how fast the baseball is moving as it leaves the bat following the collision
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
A parallel-plate capacitor has a plate area of 1cm^1 and a plate separation of 2.5 mm. To obtain an electric field of 1.0*10^6N/m between the plates, the magnitude of the charge on each plate should be.
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