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1.) A nearsighted person has a near point of 12 cm and a far point of 17 cm. If the corrective lens is 2.0 cm from his eye, what lens power will enable this person to see distant objects clearly?(answer should be in diopters)
2.) A nearsighted man wears contact lenses of -3.00 diopters. With these lenses, his corrected near point is 25.0 cm. What is his uncorrected near point?
The picture below shows a model of a human leg with a heavy weight on the ankle. It represents a person lying on his back doing leg-lifts to exercise the quadriceps. What is the magnitude of the gravitational torque
Consider an Al/SiO2/Al metal-oxide-metal parallel plate capacitor. Calculate the capacitance
A steel tank is built to hold methanol. The tank is 2.000 m in diameter and 5.000 m high. It is completely full with methanol at 10.0°C. If the temperature rises to 40.0°C, how much methanol (in liters) will flow out of the tank, given that both the ..
Two 6.0cm×6.0cm metal electrodes are spaced 1.0 mm apart and connected by wires to the terminals of a 9.0 V battery. What is the charge on each electrode
A tennis ball may leave the racket of a top player on the servewith a speed of 67.0 m/s. what is the average force on the ball
Astronomers discover a binary star system that has a period of 96.0days. How far apart are the two stars in m
In a certain cyclotron a proton moves in a circle of radius0.800 m. The magnitude of the magneticfield is 1.10 T. What is the oscillator frequency
If the heat is supplied by a stove burner at the rate of 2.0 \rm kW, how long will it take to heat the pan
When a 60 N stone is attached to a spring scale and is submerged in water, the spring scale reads 35 N. What is the density of the stone
A homemade capacitor is assembled with placing two 9 in pie pans 8 cm apart and connecting them to the opposite terminals of a 9 V battery. Estimate the capacitance. Estimate the charge on each plate. Estimate the electric field halfway among the pla..
If Cassie's near point is 110 cm, what's the power of the glasses if it helps her gain back the normal near point
An aluminum wing on a passenger jet is 26 meter long when its temperature is 15oC. Find at what temperature would the wing be 6 centimeter (.06 m) shorter
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