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A spotlight on a boat is 2.5 m above the water, and the light strikes the water at a point that is 8.0 m horizontally displaced from the spotlight (see the drawing). The depth of the water is 4.0m. Decide the distance d, which locates the point where the light strikes the bottom. Suppose water has a refraction index of 1.333.
a cylinder-shaped carbon resistor is 8 em in length and its circular cross section has a diameter d 1 mm. a determine
a 300g ball is tied to a string. it is pulled to an angle of 4.00 degrees and released to swing as a pendulum. a
Compute magnitude and direction of magnetic field produced by the moving belt at a point just above its surface .
A capacitor is connected across an ac generator whose frequency is 753 Hz and whose peak output voltage is 140 V. The rms current in the circuit is 3.0 A. What is the capacitance of the capacitor
a particle has a velocity u 0.59c in the labortory. the laboratory is itself moving with velocity v 0.81c relative to
Express your answer with the appropriate units.
The power required by an ice maker is 225 W and is the rate at which it does work. The ice maker operates like a refrigerator or an air conditioner and has a coefficient of performance of 3.60.
A pair of speakers separated by 0.7 m is driven by the same oscillator at a frequency of 674Hz. An observer, first positioned at one of the speakers, begins to walk along a line perpendicular to the line joining the speakers. (Assume the speed of ..
The drawing shows a block at rest on an incline. What is the static frictional force that acts on the block
A capacitance C and an inductance L are operated at the same angular frequency. A) At what angular frequency will they have the same reactance? Express your answer in terms of the variables C and L. B) If L = 5.30mH and C = 3.40\mu F , what is the nu..
The top of Pike's Peak is 14,100 ft above sea level. Neglecting the variation of T with altitude and using the average surface temperature of 290K and the number average molecular weight of 29 for air, calculate the atmospheric pressure at the top..
The only two forces acting on a body have magnitudes of 20N and 38N and a directions that differ by 76 degrees. What is the mass of the body
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