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The linear density of the A string on a violin is 9.69 x10-4 kg/m. A wave on the string has a frequency of 323 Hz and a wavelength of 40.7 cm. What is the tension in the string?
a cat with mass 4.5 kg is sitting on top of a turntable of mass 20 kg and radius 1.4 m. Calculate the magnitude of the angular velocity of the turntable in rotations per minute
A 5.7x10^2 kg hot-air balloon takes off from rest at the surface of the earth. The wind and lift forces take the balloon up, doing +9.7 x 10^4 J of work on the balloon in the procedure. At what height above the surface of the earth does the balloo..
at what angle to the vertical does the boy throw the can. What is the period of our orbital motion about the center of Galaxy in Earth years.
a hollow conducting sphere inner radius ra 18cm and outer radius rb24cm has a charge of -3.7n c is placed on the
an electron starts from one plate of a charged closely spaced vertical parallel plate arrangement with a velocity of
A 2.0-kg ball is attached to the end of a 2.5-m string to form a pendulum. This pendulum is released from rest with the string horizontal
A single loop of wire with an area of 9.05×10?2 m2 is in a uniform magnetic field that has an initial value of 3.69 T , find the current induced in the loop
A bullet of mass 10.1 g is fired into an initially stationary block and comes to rest in the block. Find the initial speed of the bullet
In a hot star, as of the high temperature, an atom can absorb sufficient energy to remove several electrons from the atom. Compute the wavelengths of the next three spectral lines nearest to the line of longest wavelength
Determine the force required to push a 1000kg stoneblock up the side of the pyramid along a ramp. The ramp has anangle of 40 degrees and a coefficient of friction of 0.1 (thisrepresents a relatively slippery surface because you sprinkled lotsof small..
Calculate the angular wave number and the speed of the wave.
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall. what is the magnitude of the horizontal component of force produced by the wall
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