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A pipe that is closed on one end is 1.2 meters long. What are its fundamental frequency and its first two overtones? You punch out the closed end of the pipe What are its new first and second harmonic frequencies?
In an experiment on the photoelectric effect, a cessium plate is illuminated with UV light of wavelength 2000 angstroms. The stopping potential is found to be 4.21 volts. What is the work function of the cessium surface?
when a mass of 180g is attached to a vertical to a vertical spring and lowered to its equilibrium position, it is found that the spring extends 12cm. what is the period of the resulting oscillations
A resistor (R = 900 ?), a capacitor (C = 0.25 µF), and an inductor (L = 4.0 H) are connected in series across a 240 Hz AC source for which ?Vmax = 100 V. estimate the phase angle between the current and voltage
A photon produces a proton-antiproton pair according to the reaction y ---> p+P. What is the minimum possible frequency of the photon
assume a brown dwarf has a surface temperature of 1000 K and approximately the same radius as jupiter. what is its luminosity compared to that of the sun
A 1.5 kg mass is moving in a circle of radius 2 m on a flat frictionless table at the end of a string. What is the angular momentum of the mass
Determine the binding energy of the last neutron in a 2311Na nucleus. The masses of the neutral atoms of 2311Na and 2211Na are 22.989770 u and 21.994437 u
Compute the semi major axis of the star orbit
Find the moment of inertia of the plate for an axis that lies in the plane of the plate, passes through the center of the plate, and is perpendicular to the axis in part A
A constant 6.0 N net force acts for 4.0 s on a 12 kg object. what is the objects change in velocity
An alpha particle (a He nucleus, containing two protons and two neutrons and having a mass of 6.52×10^?27 kg) traveling horizontally at 35.2 km/s enters a uniform, What effect does the magnetic field have on the speed of the particle
What quantum number of the hydrogen atom comes closest to giving a 100- nm-diameter electron orbit, What is the electron's speed in this state
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