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Explain the difference between energy and power and how they are related to work. Give examples of each).
Find the total energy of a vibrating string of length L, fixed at both ends, oscillating in its n'th characteristic mode with and amplitude A.
Find the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive?
If the force of friction acting on the two bricks is 5.0 N, how much time will elapse before the bricks come to rest?
When sound emerges from a loudspeaker, is the diffraction angle determined by the wavelength, the diameter of the speaker, or a combination of these two factors
If the frequency of the third harmonic of the vibrating string is 600 Hz, what is the frequency of the first harmonic?
An untethered(free) weather balloon travelling with the wind (at wind speed) emits a 1 khz sound wave. The wind is blowing with respect to the land
You can estimate the distance to a lightning flash by counting the seconds that elapse between the time you see the flash
Pick a specific sound, give the decibels of the sound, and explain what this measurement means?
The echo comes back at an angle of 20 degrees above the horizontal and the echo took 2.32 s to get back to submarine.
The atom is mostly empty. If all the atoms in the Earth collapsed in to the size of a nucleus, what would be the Earth's diameter?
What conditions must be met to produce simple harmonic motion?
What is the potential energy of the block when it comes to rest on the incline?
Two sound waves are emitted: y1, with frequency f1, and y2, with frequency f2, with other constants identical, as expressed below.
A student sits on a freely rotational stool holding two dumbbells, each of mass 3.00 kg. When the students arms are extended horizontally.
A simple harmonic oscillator, of mass m and natural frequency w_0, experiences an oscillating driving force f(t)=m a cos(wt).
Assume that the proton behaves as a uniformly-charged sphere of radius R=10^(-15) m. Calculate the shift this produces in the ground-state energy of hydrogen.
A system is in an eigenstate | psi_i > with energy E_i. The perturbation V(t) = H'exp(-((alpha)^2)(t^2)).
Calculate the impedance (XR) of R = 100 at f = 6 hz, 60 hz, and 600 hz.
Two identical spin-1/2 particles with mass m are in a one-dimensional infinite square-well potential with width a, so V(x)=0 for 0 <= x <= a.
A 70 kg ancient statue lies at the bottom of the sea (fresh water). Its volume is 3.0*10^4 (cm)^3.
You should assume g = 9.8 m.s-2 and give your answer to an appropriate number of significant figures and in the correct SI units.
It has a head-on collision with a 0.303 kg glider that is moving to the left with a speed of 2.25 m/s .
Suppose you place a speaker in front the open end of a tube which is closed at the other end, and vary the frequency of a pure sound (sine wave)
The band gap of pure GaP is 2.25 eV. Calculate the molar fraction of GaP required to produce the 1.78 eV band gap.