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A typical steel B-string in a guitar resonates in its fundamental frequency at 240 Hertz. The length of the string is 0.600 m. What is the wave velocity along the string? The tension in the above string is 84.0 N. Calculate the mass of a 3.00 m long piece of the steel string. Find the wavelength of the third harmonic of the guitar string.
Its thermal conductivity is 7.50×10?2W/(m?K) ; If the temperature difference between opposite faces is 84.5?C, how much heat flows through the slab in 1 day
After getting a drink of water, a hamster jumps onto an exercise wheel for a run. Find the work done by the hamster to get the exercise wheel moving
A battery with an emf of 12.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 11.70 V, What is the energy dissipated in the battery's internal resistance in 4.20 minutes
At a distance of 4.32m from a siren, the sound intensity is 3.75 x 10-2 W/m2. Assume that the siren radiates sound uniformly in all directions; find out the total power radiated.
A bag of cement weighing 275 N hangs in equilibrium from three wires as suggested in the figure below. Two of the wires make angles θ1 = 56.0° and θ2 = 42.0° with the horizontal. Assuming the system is in equilibrium, find the tensions T1, T2,..
A nail gun fires a nail into a piece of wood. The nail is going a velocity of 9.0 m/s right before entering the wood. From entering the wood, how long does it take the nail to come to a stop
A flight attendant pulls her 72.0 N flight bag a distance of 282 m along a level airport floor at a constant speed. The force she exerts is 33.0 N at an angle of 52.0° above the horizontal.
Two plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released. Find the maximum speed achieved by the sphere
A ball is kicked with an initial velocity of 15 m/s in the horizontal direction and 14 m/s in the vertical direction. For how long does the ball remain in the air
A Nextrad wave of 2.70 GHz was sent out. If it took 3.75 ms to get the returning signal from a storm weather system, how far away is the storm
An object of mass 3.09 kg, moving with an initial velocity of 4.90 m/s, collides with and sticks to an object of mass 2.89 kg with an initial velocity of -3.84 m/s
A 50 kg box is being pushed a distance of 7.0 m across the floor by a force whose magnitude is 164 N. The force is parallel to the displacement of the box.
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