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H-F molecule has spring constant of 970 N/m. Assume that an H-F chemical laser, which lases betwee vibrational states of the H-F molecule, changes it's vibrational quantum number by one as it emits it's coherent beam. If the laser has a continuous power output of 12.0 kW, how many photons per seconde does it emit?
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 × 10-25 kg. Determine the radius of the path
A parallel plate capacitor has a separation between its plates of 1.0 mm. There is a dielectric with a dielectric constant of 2.1 fi ling the gap. what is the area of one of the capacitor plates
A 1.60m cylindrical rod of diameter 0.450cm is connected to a power supply that maintains a constant potential difference of 15.0V across its ends, Find the resistivity and for the material of the rod at 20 ?C
The dielectric to be used in a parallel-plate capacitor has a dielectric constant of 2.40 and a dielectric strength of 1.60 107 V/m. What is the minimum area the plates of the capacitor may have
a 9.40-l container holds a mixture of two gases at 33 degc. the partial pressures of gas a and gas b respectively are
A 10 ohm resistor is in series with a 1 and 5 ohm resistor parallel combination. Calculate the total current running through the wire
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 5.69 10-2 kg/s. What is the speed at which the gasoline moves through the fuel line
an aiplane accelerates from rest down a runway at 3.20 ms2 for 32.8 s until it finally lifts off the ground. determine
A 115-V source of emf is attached to a heating element with is a coil of nichrome wire (r=100*10^-8) of cross section 1.20 mm^2. What must be the length of the wire
A submerged solid object displaces a. its own volume in the liquid. b. more than its own volume in the liquid. c. less than its own volume of liquid. I am confused with the wording. Why do they use volume instead of weight?
A whale swims due east for a distance of 5.1 km, turns around and goes due west for 6.1 km, What is the total distance traveled by the whale
An object with a charge of -4.4?C and a mass of 1.7×10?2kg experiences an upward electric force, If the electric charge on the object is doubled while its mass remains the same, find the direction and magnitude of its acceleration
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