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A dentist's mirror is placed 2.3 cm from a tooth. The enlarged image is located 5.8 cm behind the mirror.
(a) What kind of mirror (plane, concave, or convex) is being used?
(b) Determine the focal length of the mirror.
(c) What is the magnification?
(d) How is the image oriented relative to the object?
A girl pulls her brother along on a wagon. She pulls with a force of 35 N in a direction of 29.2 degrees to the horizontal, How much work is done be the girl
Would you expect to get a more accurate value for m using Equation m = h'/h in the situation where the lens is closest to the object or in the situation where the lens is furthest from the object?
Two forces parallel to the x axis do 19.0 J of work on a small tray while moving it 17.6 m in the x direction across a gym floor, What is the other force
An electron moves in the xy plane with a speed of 3.75 x 106 m / s at an angle 600 with the x-axis 300 and the axis. A magnetic field of 0.85T is in the positive direction of axis y. Find the magnetic force on the electron.
A 4.7 kg block moving at 4.7 m/s makes a head-on elastic collision with a stationary block of mass 3.9 kg. Find the kinetic energy of the system after the collision
The following two traveling waves are super posed to create at standing wave: What is the resulting amplitude of the standing wave
A +2.7 µC charge is 32 cm to the right of a -5.3 µC charge. At the midpoint between the two charges, determine the potential and the electric field
Find the period of a child's leg as it swings about the hip joint. Assume the leg is 0.39 m long and can be treated as a uniform rod, Estimate the child's walking speed
Find out the recoil velocity that the raft. At what height above the cannon should the net be placed in order to catch the daredevil.
A simple harmonic oscillator consists of the block of mass 1.90 kg attached to a spring of spring constant 196 N/m. while t = 3.00 s, position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
A particular vacuum flask has a mass of 1 kilogram and contains 1 liter of liquid water, how much energy did the heating element supply, You can disregard the energy needed to warm and vaporize the water
Coherent light with wavelength 609nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3- {rm m} from the slits. The first-order bright fringe is a distance of 4.84 {rm mm} from the center of ..
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