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The A string of aviolin is a little too tightly stretched. Beats at 7 persecond are heard when the string is sounded together with a tuningfork that is oscillating accurately at concert A (440Hz). What is the period of the violin string oscillation?
A disk, initially rotating at 106 rad/s, is slowed down with a constant angular acceleration of magnitude 2.24 rad/s2. How much time does the disk take to stop
A converging lens (f = 10.8 cm) is located 32.9 cm to the left of a diverging lens (f = -6.06 cm). Locate the final image of the stamp relative to the diverging lens
The wave function of an electron is given below. psi_2(x)=sqrt(2/L)sin((2pix)/L Calculate the probability of finding the electron between x = 0 and x = L/7
A proton, an electron, and an alpha particle (of charge +2e) form an equilateral triangle of side length 2.19×10-10 m. What is the electric potential energy of the three-particle system
Light is incident on an equilateral glass prism at a 45.0 angle to one face. Calculate the angle at which light emerges from the opposite face
A radar station locates a sinking ship at range 15.6 km and bearing 136° clockwise from north. From the same station, a rescue plane is at horizontal range 19.6 km, 160° clockwise from north, with elevation 2.10 km. (a) Write the displacement vector ..
A 0.14 kg ball is placed in a shallow wedge with an opening angle of 126°. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless.
Aluminum's density is 2700 kg/m^3. An aluminum cube 3.4cm on a side is placed on a scale. What does the scale read when the cube is entirely in air
An iron casting containing a number of cavities weighs 6500.0 N in air and 3500.0 N in water. What is the volume of the cavities in the casting
An object with a charge of 4.6 MicroC moves from moves from the top to the bottom of this page at a speed of 16.6 m/s. What is the direction of this magnetic field force
A silver rod and a common glass rod both have the same length when at 20.0°C. The silver rod is heated to 52.3°C. To what temperature must the glass rod be heated so that they are again at the same length?
Two slits are 0.168 mm apart. A mixture of red light (wavelength = 664 nm) and yellow-green light (wavelength = 568 nm) falls on the slits. A flat observation screen is located 2.41 m away. What is the distance on the screen between the third-order r..
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