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A nearsighted person wears contacts to correct for a far point that is only 3.24 m from his eyes. The near point of his unaided eyes is 25.0 cm from his eyes. If he does not remove the lenses when reading, how close can he hold a book and see it clearly?
A 49.0 g ball of copper has a net charge of 1.7 µC. What fraction of the copper's electrons have been removed
TV-reception antennas for VHF (channels 2 through 13) are constructed with cross wires supported at their centers, What is the frequency for channel 4
Estimate the radiation pressure due to a 100-W bulb at a distance of 7.0 cm from the center of the bulb. Estimate the force exerted on your fingertip
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 51° C. What is the temperature coefficient of resistivity
Determine the resolution limit set by diffraction . what average force do you need to apply to stop the sled? Utilize the concepts of impulse and momentum.
Given a binomial distribution with n = 20 and p = 0.76, would the normal distribution provide a reasonable approximation? Why or why not and find the area under the standard normal curve for the following:
What is the wavelength of the waves emitted by source? What is the difference in frequency between directly radiated waves and the waves reflected from a whale travelling straight toward the ship at 4.99? Suppose that the ship is at rest in the water..
A horizontal steel bar, 4m long and 2 cm diameter is imbedded in two concrete walls. A 2000 kg mass is hung from its center. By how much does the center sag
A 10:0 kg mass starts at the top of an incline that is 8:0 m long and makes an angle of 400 above the horizontal. As it slides down, there is a constant frictional force of 23:8 N . What is its speed at the bottom?
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. the
X rays with a wavelength of 0.18 nm undergo first-order diffraction from a crystal at a 74 degree angle of incidence
Cloverleaf exits are approximately circular. A 552 kg automobile is traveling 70 mph while taking a cloverleaf exit that has a radius of 39.3 m. calculate the centripetal force on the car
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