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An electron and a positron are moving toward each other and each has speed 0.560c in the lab frame.
1. What is the wavelength of each photon? ____________ m
2. What is the kinetic energy of each particle? Ke-:________ J, Ke+__________ J
3. The e+ and e- meet head-on and annihilate. What is the energy of each photon that is produced? Eph: __________ J
A 0.063 kilogram arrow is fired horizontally. The bowstring exerts an average force of 60 Newton on the arrow over a distance of 0.95 meter. Compute with what speed does the arrow leave the bow
Two 1.7 kg masses are 1.5 m apart on a frictionless table. Each has + 9.7 mu C of charge.What is the magnitude of the electric force on one of the masses?
A beam of gamma rays from a distant galaxy is observed through two polarizing filters whose transmission axis is at a 45 degree angle relative to each other here on earth. What is the intensity of the output beam
The semiconducting compound CdTe is widely used for infrared light emmiting diodes (LEDs). find the frequency of light emitted by a CdTe LED
With its wheels locked, a van slides down a hill inclined at 26.0 to the horizontal. Find the acceleration of this van if the hill is icy and frictionless
The second hand of a clock has a length of 0.30 m. Evaluate what distance does the tip of the second hand sweep through in 3 minutes and 45 seconds?
There is probably a discrepancy among the expected value of -2 and the measured value for the power in the inverse relationship between N and r. Discuss the role of dead time of the Geiger-Muller tube. Discuss the role of the point source assumption ..
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.0 m, 3.7 m) while a constant force acts on it. The force has magnitude 1.7 N and is directed at a counterclockwise angle o..
An object located at the origin and having mass M explodes into three pieces having masses M/4, M/3, and 5M/12. Obtain the velocity components of the third piece
The primary coil of a transformer has N1 = 4.00 102 turns, and its secondary coil has N2 = 1.20 103 turns. If the input voltage across the primary coil is ?v = (140 V) sin ?t, what rms voltage is developed across the secondary coil? V
a block mass 15.92kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.11m/s^2. what is the net force acting on the mass
A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.33 kg, and the wedge has a mass of 5.11 kg. The ball is moving a speed of v = 4.47 m/s when it strikes the wedge, which is initially at rest. a) Ass..
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