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A pear of 10.2 cm height is placed at a distance of 20.1 m in front of a lens that has a focal length of 26 mm.
a. What is the magnification?
b. How large is the image of the pear?
A charge of -5.0 nC is uniformly distributed around a ring of radius 1.5 m that lies in the yz plane with its center at the origin, Calculate the work done in moving the point charge to the origin
The filament of an incandescent light bulb is made of tungsten which has a thermal coefficient of resistivity of ? = 4.4 x 10-3K-1, Write an equation for the initial current, I0, that flows through the filament when it is initially turned on
A circuit consists of two 150.?k? resistors in series with an ideal 12.0?V battery. Calculate the potential drop across one of the resistors
In a mass spectrometer, a singly charged ion having a particular velocity is selected by using a magnetic field of 0.10 T , What is the mass of the ion
The mass of Mercury is 0.0550 times that of earth, and its radius is 0.380 times that of earth, Calculate the average density of Mercury (in kg/m3) given the earth's density is 5.52×103 kg/m3
A bumper car with mass m1 = 113 kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 94 kg is moving to left with a velocity of v2 = -3.2 m/s.
A burglar alarm in a house emits sound at a fixed frequency of 3.1 kHz. On a windy day a person cycles past the house while the alarm is sounding. What frequency does the cyclist hear
Determine the highest speed the stone can attain without breaking the string.
Suppose 60kW is to be transmitted over two 0.150? lines, Estimate how much power is saved if the voltage is stepped up from 200V to 2000V
What is the apparent weight of a 75 kg astronaut.
A grating has exactly 8000 lines uniformly spaced over 2.58 cm, What is the expected angle for the third-order maximum of the green line
Two parallel plates are charged to a voltage of 50V. If the separation between the plates is 0.05m, what is the electric field between them?
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