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In her job as a dental hygienist, Kathryn uses a concave mirror to see the back of her patient's teeth. When the mirror is 1.11 cm from a tooth, the image is upright and 3.13 times as large as the tooth. What are the focal length and radius of curvature of the mirror?
a mass m1 3.1 kg rests on a frictionless table and connected by a massless string over a massless pulley to another
A set of coupled pendula has m = 0:2kg for both masses, but k and l are unknown. At t = 0, the left hand mass is held at xL = 2:5cm and the right hand mass is held at xR = 0, Find the approximate values of k and l
A 40.0 cm long organ pipe is filled with air at 0 degrees C and is open at both ends. What is the beat frequency between the fundamental frequencies of the two organ pipes
write down the wave function psix for an electron in the n3 state of a 10-nm wide infinite well with the center of the
On an air track, a 400.5g glider moving to the right at 2.00m/s collides elastically with a 500.5g glider moving in the opposite direction at 3.00m/s. find the velocity of the glider after the collision
The membrane that surrounds a certain type of living cell has a surface area of 6.4 x 10-9 m2 and a thickness of 1.4 x 10-8 m. How much charge resides on the outer surface
the half-life of a muon at rest is 1.52 us. One can store muons for a much longer time by accelerating them to a speed very close to that of light, How fast will the muons have to be moving
A screw with 25 threads per centimeter is driven 1.49 cm into its fixture in 12.4 s with a cordless electric screwdriver. What is the average angular speed of the screwdriver
A football is thrown horizontally with an initial velocity of (14.8 m/s)x. Ignoring air resistance, the average acceleration of the football over any period of time is (-9.81 m/s2)y. Calculate the magnitude of the velocity at this time
A person pushes a 14.0-kg lawn mower at constant speed with a force of F=88.0 N directed along the handle which is at an angle of 45.0 degrees to the horizontal. Calculate the kinetic friction coefficent
Steam at 100°C is added to ice at 0°C, Find the amount of ice melted and the final temperature when the mass of steam is 14.0 g and the mass of ice is 52.0 g
What should be the minimum initial speed of the dart so that combination makes a complete circular loop after the collision. find the minimum diameter of the raft that would prevent the diamond from being seen.
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