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A sealed container contains 7 moles of neon gas at STP. Estimate the number of neon atoms having speeds in the range from 188.0 m/s and 192.0 m/s
A visual binary system is at a distance of 5.0 pc. The distance between the two stars subtends an angle of 4.5 arcseconds. What is the mass of each of the stars
a u-tube contains mercury with a density of 13,600 kg/m^3. it is open on one end, and the other end is connected to a boiler, what is the gauge pressure at point A in the boiler
three masses are located as follows: a 3.0 kg mass is at the origin, a 4.5 mass at (0.0m, 4.0m), what is the gravitational energy of the system of masses
Bohr Model An electron is in the n=5 state of hydrogen to what states can the electron make transitions, what are the energies of the emitted radiations
An engine compresses air down 1/16 its initial volume. The initial pressure is 7.7 X10^6 pa. Find the temperature after compression
A wire is attached to a ceiling and a brass ball. The tension on the wire is T=120N. What is the new weight of the ball
Calculate the molar Sakur-Tetrode entropy of gaseous argon at 25 C and atmospheric pressure
Approximately which fringe number has a peak intesnity that is 1/2 percent of the central fringe intensity
In a diffraction experiment a point (pinhole) source of wavelength 600 nm is to be used. Determine whether Fresnel or Fraunhofer diffraction applies
The average resistivity of the human body (apart from surface resistance of the skin) is about 5.5 ?·m. What is the resistance between the hands if the skin resistance is negligible
The electron beam inside a television picture tube is 0.4 mm in diameter and carries a current of 55 µA. What is the power delivered to the screen by the electron beam
Consider a Hydrogen atom with the electron in the n = 8 shell. What is the energy of this system, How many electrons would fit in this main shell
Two ideal polarizers A and B are aligned so that their transmission axis are vertical and horizontal respectively. Assuming that unpolarized light of intensity Io is incident upon the first polarizer
Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. what is the angle between the transmission axes of the filters
Two converging lenses (f1 = 8.50 cm and f2 = 5.90 cm) are separated by 17.4 cm. The lens on the left has the longer focal length. Locate the final image relative to the lens on the right
A glass plate (n=1.62) is coated with a thin, transparent film (n=1.27). Light reflected at normal incidence is observed as the wavelength is varied continuously. Find the thickness of the film
A radio antenna broadcasts a 1.0 MHz radio wave with 30.0 kW of power. What is the electric field amplitude at this distance
A small block with mass 0.200 kg is attached to a string passing through a hole in a frictionless, horizontal surface. What is the radius of the circle when the string breaks
A 1400 kg car traveling in the positive direction takes 15.0 seconds to slow from 25.0 meters per second to 12.0 meters per second
A satellite is put in a circular orbit about Earth with a radius equal to 45% of the radius of the Moon's orbit. What is its period of revolution in lunar months
You put your morning coffee in a copper mug. Assuming the coffee is boiling hot (100 *C), what is the temperature of the cup of coffee
An aircraft weighing 971 N is accelerated at 9.1 m/s/s for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft
A 0.07 kg bullet traveling at 569 m/s hits a 5.9 kg block of wood and stays in the wood. What is the velocity (speed)of the wood block
at a given instatn in time, a traveling EM wave is noted to have its maximum magnetic field pointing west, what are the maximum values for the two fields