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(a) Find the rms speed of a helium molecule at 280 K.
(b) Find the rms speed of an iron atom of mass 55.9 u at 280 K.
(c) Find the rms speed of a pollen particle of mass 5.36 10-13 g suspended in water at a temperature of 280 K.
Consider a harmonic, electromagnetic plane wave traveling along a line from the origin to the point (3,5,6). It is linearly polarized , Compute the irradiance of the wave
Length A is measured to be 7.5cm±0.3 cm and length B is 7.0cm±0.6cm. What is the difference between the two lengths, LB - LA
A transverse sinusoidal wave on a string has a period T = 45.0 ms and travels in the negative x direction with a speed of 30.0 m/s, What is the maximum transverse speed of the string
A 2.0 kg object moving with a velocity of +8.0 m/s collides with a 8.0 kg object that is initially at rest. What is the coefficient of restitution for this collision
a hydrogen atom initially in its ground state absorbs a photon of energy 2.09 x 10^-18 J. Calculate the frequencies of every different photon emitted in this process
An astronaut weighs 275 lbs with equipment here on the surface of the earth. If he goes to a planet where the acceleration of gravity is 12.5 ft/s/s, What will be his mass be there
A 2.40-kg textbook is forced against a horizontal spring of negligible mass and force constant 300 N/m , compressing the spring a distance of 0.260m. find how far the textbook moves from its initial position before coming to rest
3.00 m-long, 350 steel beams extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 construction worker stands at the far end of beam.
In preperation for building a space station, an astronaut removes a self-teliscoping uniform rod form the cargo bay and releases it, What is the angular speed after the catch slips
A little study of energy conservation tells us that the gain in KE of the ball as it rolls down the ramp is equal to the decrease in PE as the ball loses height-in short, APE = AKE. Why were we able to bypass KE in our analysis here
A coin is placed on a turntable 13 cm from the center. A lump of clay placed behind the coin prevents it from sliding backwards , How long will it take before the coin begins to slide radially
The figure below shows a 6.2 kg rod of 1.00 m in length, hinged to a vertical wall and supported by a thin wire. The wire and rod each make angles of 45° with the vertical. When a 10.0 kg block is suspended from the midpoint of the rod, the tension T..
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