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In the standing wave experiment, the length of the string is 1.400 m. When a mass of 80 grams is hung, the 7th harmonic is obtained. If the linear density of the string is 7.65x10^-4 and wave velocity is 32m/sec, find the frequency of the vibrator. Please show work.
A net torque of 36N*m acts on a wheel rotating about a fixed axis for 6 s. During this time the angular speed of the wheel increases from 0 to 12 rad/s. What is the magnitude of the frictional torque
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
A crate is dragged 3m across a rough floor at a constant speed by a worker applying 500N at an angle of 30 deg above the horizontal. How many forces act on the crate
An electric dipole of dipole moment 4.5 x 10-9 C·m is in a 250 N/C electric field, what is the potential energy
The radius of our Sun is 6.96*10^8 m, and its total power output is 3.85*10^26 W. find lambda-max for the Sun
Sunlight reaches the surface of the earth with a total intensity of about 1200 W/m^2. What is the total force this sunlight applies
A beam of particles is directed at a 0.017-kg tumor. There are 2.1x10^10 particles per second reaching the tumor, Find the biologically equivalent dose given to the tumor in 19s
An electron microscope is designed to resolve objects as small as 0.32 nm. What energy electrons must be used in this instrument
A diffraction grating produces a first order maximum at an angle of 20.0°. What is the angle of the second order maximum
A small, 10.0 g insect stand at one end of a thin uniform metal rod which is initially at rest on a frictionless horizontal table. What is the resulting angular speed of the rod
What is the Fourier transform of the 2-term wavelet f(t) = (4,2,1). Calculate this on paper (show your work) and graph the amplitude and phase spectra for this wavelet.
A shopper in a supermarket pushes a loaded 28 kg cart with a horizontal force of 12N. How far will the cart move in 3.5s, starting from rest.
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