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A fortune-teller looks into a silver-surfaced crystal ball with a radius of 10.0 cm and focal length of -5.0 cm.
Part A. If her eye is 28 cm from the ball, where is the image of her eye? Determine the distance from the image to the surface of the ball. Express your answer to two significant figures and include the appropriate units.
Part B. Estimate the size of that image. Assume the height of her eye is 1.0 cm. Express your answer to two significant figures and include the appropriate units.
An artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. Calculate the speed of the third piece of shrapnel
At a certain location, the Earth's magnetic field has a magnitude of 5.8×10^-5, Find the magnitude of the magnetic flux through the top of a desk at this location that measures 140cm by 77cm
a lens that has a focal length of 5.00 cm is used as a magnifying glass.a to obtain maximum magnification and an image
a variable capacitor in a circuit with a 120v, 60-Hz source initially has a capacitance of .25uf. The capacitance is then increased to .4uf. What is the percentage change in the current in the circuit
A butterfly flies from the top of a tree in the center of a garden to rest on top of a red flower at the garden's edge. Determine the magnitude of the butterfly's displacement
A block of mass m= 2.00kg is released from rest at h=0.500m above the surface of a table, at the top of a 30 degree incline. What is the velocity of the block as it leaves the incline
A 13 kg rock is attached to a 2.5-m long string and twirled overhead. If the maximum tension that the string can sustain before breaking is 98.0 N, what is the maximum speed of the rock?
An amateur astronomer decides to build a telescope from a discarded pair of eyeglasses. One of the lenses has a refractive power of 11 diopters, while the other has a refractive power of 1.1 diopters.
a solar energy power plant consists of a carnot engine with a cold reservoir maintained at 40 degree celcius using
A defibrillator is used during a heart attack to restore the heartto its normal beating pattern (see Section 19.5). A defibrillatorpasses 22 A of current through thetorso of a person in 1.7 ms. How much charge moves during this time?
An 18.0 pm wavelength photon is scattered by a stationary electron through an angle of 120°. Find the wavelength of the scattered photon
Consider an elastic collision in one dimension that involves objects of mass 2.7 kg and 4.3 kg. Find the velocities of the two objects after the collision
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