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In a tube filled with atoms that were excited by an electric current, some of the vibrating atoms move towards the observer while others move away as a result of the particles' random motion, and as a result of the doppler effect, the spectral lines will broaden. Examine the difference in this broadening effect for atomic hydrogen between 300K and 5500K (between room temperature and the surface of the sun's temperature.) At these two temperatures, are the characteristic velocities Newtonian or Relativistic?
question1at rest a light source emits 532 nm light.a as it moves along a line connecting it and earth observers on
A converging lens with a focal length of 31 cm is used to form an image on a screen that is 2.7 m to the right the lens. Where must the object be placed
The position of an object connected to a spring varies with time according to the expression x = (4.8 cm) sin(9.3 ?t). Find the amplitude of the motion
A sled and rider, gliding over horizontal, frictionless ice at 4.5 , have a combined mass of 72. What impulse was delivered to the sled by the friction force from the rough spot
A person is 1.4 m tall, and is standing at 2.0 m in front of a plane mirror. What is the minimum length of the mirror if the person is now 3.5 m from the mirror
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 7130 m/s, what is the magnitude of the average current in this region
You are driving east on 8th Street (Tamiami Trail) at a speed of 33. What is the frequency of the siren
A mirror produces an image of the sun, and the image is located 0.9900 m from the mirror. What is the algebraic expression for the object distance do of the tree from the mirror
A skateboarder, with an initial speed of 5.0 m/s, rolls virtually friction free down a straight incline of length 19 m in 3.3 s. What is the angle of the incline
A 30 g particle undergoes SHM with an amplitude of 2.0 mm and a maximum acceleration of magnitude 8.0 multiplied by 103 m/s2, determine the total mechanical energy of the oscillator
A lens of focal length 15.0 cm is used to create an image of the Full Moon. What is diameter of the image
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar and has a range of 26 m. Suppose the launch speed is doubled, and the projectile is fired at the same angle above the grou..
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