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A violin string of length 40 cm and mass 1.4 g has a frequency of 526 Hz when it is vibrating in its fundamental mode. (a) What is the tension in the string? (b) What is the wavelength of the standing wave on the string? (c) Where must you place your finger to increase the frequency to 676 Hz? cm from the fixed end of the string (from the peg of the violin)
A 200, 47.0 cm-diameter turntables rotate on frictionless bearings at 70. A 24.0 block sits at the center of the turntable. A compressed spring shoots the block radically outward along the frictionless groove in the surface of turntable.
A 2.40 MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as the heart beats.
A skateboarder, with an initial speed of 2.5 m/s, rolls virtually friction free down a straight incline of length 19 meter in 3.4 second. Obtain at what angle is the incline oriented above the horizontal
A rigid iron cylinder contains propane gas. The cylinder and thegas are in thermal equilibrium. how many moles of propane are there in the cylinder
A 0.25 m long and 0.25 mwide loop is moved at a constant velocity of 0.67 m/s into aperpendicular constant magnetic field of 0.91 T. Calculate the magnitude of the induced voltage in the loop
A positive charge of 4.80 C is fixed in place. From a distance of 3.60 cm a from the fixed positive charge, a particle of mass 5.70 g and charge +3.70 C is released from rest.
Suppose 2.5 mol of an ideal gas is taken from a 6m3 to a volume of 3 m3 via an isothermal compression at 30 0C. Find work done during the compression
a hiker walks 53.1 degrees north of east for 2.5km then due east for 2.0km. what is her total displacement from her
A uniform beam of mass 10 kilogram is supported only at its ends. A workman stands on the beam, one quarter of the way from one end. Determine what force must support the end
A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (26°C) at the ocean's surface, What is the maximum possible efficiency of the system
event a happeneds at the space time coordinate 1 lightsecond ls is the distance light moves in one secondta xayaza 4.5
A see-saw board is supported at its center by a fulcrum A 25 kg person sits 80 cm from center. How much force does the fulcrum exert on board
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