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Suppose your favorite FM radio station broadcasts at a frequency of 107.3 MHz. Estimate What is the wavelength of this signal? m
The middle C string on a piano is under a tension of 908 N. The period and wavelength of a wave on this string are 3.82 ms and 1.17 m, Find the linear density of the string
An ideal monatomic gas, consisting of 2.73 mol of volume0.0805 m3, expands adiabatically. What is the final volume of the gas
a fire hose 3.51 cm in diameter is capable of spraying water at a velocity of 24.7 ms. for a continuous horizontal flow
A 145-g ball was thrown into the air at an initial velocity of16 m/s. (Assume the ball started at ground level.) The ball reacheda maximum height of 13 m. What was the kinetic evergy when the ball reached maximumheight (before it started traveling do..
a mass m hanging on a spring has a natural frequency f. if the mass is increased to 4 m what is the new natural
A capacitor is connected across the terminals of an ac generator that has a frenquency of 440 Hz and supplies a voltage of 25 V. Find the capacitance of the second capacitor
An infinite line of positive charge lies along the y axis, with charge density 1.90 microcoulombs/m. Calculate the torque about the midpoint of the dipole
A 140-m-wide river flows due east at a uniform speed of 3.9 m/s. A boat with a speed of 7.8 m/s relative to the water leaves the south bank pointed in a direction 39o west of north. How long does it take for the boat to cross the river
How much would it cost just to keep the hot water inside the heater for one week? d)Suppose that you wrap the hot water heater on all sides with a 10 cm thick blanket of fiberglass insulation which has a thermal conductivity of 0.04 W/(m K).
A charge of -3mc is fixed in a place.a particle with mass=7.20*10-3Kg and charge= -8mc is fired toward the fixed charge from initial distance=.450m.if the particles initial speedis 65m/s,how close will the particle get to the fxed charge? you may n..
when high-energy charged particles move through a transparent medium with a speed greater than the speed of light in
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. If the person applies of a force of 15 N on each handle, how much force is applied to the branch
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