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A 3.00-kHz tone is being produced by a speaker with a diameter of 0.160 m. The air temperature changes from 0 to 29° C. Assuming air to be an ideal gas, find the change in the diffraction angle ?.
Calculate the velocity of a 50.0g steel ball shot from a slingshot with a 120N/m spring constant when pulled back 35cm and released
What is Rosie's power output. A long, straight wire carries a current of 44 A. The magnetic field produced by this current at a certain point is 8.0 x10-5 T. How far is the point from the wire.
Your 300 ml cup of coffee is too hot to drink when served at 92C.What is the mass of an ice cube, taken from a -19C freezer, that will cool your coffee to a pleasant 61C.
A wooden block of mass 2kg, initially stationary is dragged by a force F with magnitude 20 N along a frictionless incline with an angle 0=30 degrees, What is the wooden block acceleration
How to compute the average force
if the sea level pressure of the atmosphere is 92.1 bars, and the density is 65.5 kg/m^3 what is the equilibrium temperature
A diffraction grating has 1.5?m spacing. Find the first-order diffraction angles for the following wavelengths. Find the first-order diffraction angles for red light
A person of mass 80kg stands at the center of a rotating merry-go-round platform of radius 3.2m, Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk
A 10-kg box is at rest on a horizontal frictionless surface, at the end of an unstretched horizontal spring with constant k=4000 N/m, What is the speed of the box when it passes back through the equilibrium point
A 346-, uniform, 1.04- bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 506.0 without breaking, and cable B can support up to 436.0. You want to place a small weight on this bar. What is the h..
A sealed cubical container 22.0 cm on a side contains three times Avogadro's number of molecules at a temperature of 20.0°C
A plank 2.00 cm thick and 17.5 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of the wood
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