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Collision of cosmic rays with the upper atmosphere gives rise to a stream of particles called muons. The proper lifetime of these particles has been determined to be 2.2 µs (microseconds). Once formed, they travel through the atmosphere at very high speed. Scientists have observed the average lifetime of these rapidly moving particles to be about 10 times longer than what it would be for muons in the laboratory reference frame. Approximately how fast must the muons be traveling relative to Earth?
q1. calculate relation between radiation power if sphere with temperature 1000k and diameter 100m and smother sphere
Red light (lambda = 650 nm), green light (lambda = 510 nm) ,and violet light (lambda = 410 nm) are used in the a single slit diffraction experiment using the same slit. Which color of light will diffract the most? Explain.
question1a small object with the mass of 380 mg carries a charge of 35.0 nc and is suspended by a thread between
The owner of a van installs a rear-window lens that has a focal length of -0.320 m. When the owner looks out during the lens at an object located directly behind the van, the object appears to be0.260 m from the back of the van, and appears to be 0.3..
A loop of diameter d = 10 cm, carrying a current I = 0.2 A is placed inside a magnetic field = 0.3 T. Calculate the magnitude of the torque on the loop
A car travels at 40 km/h for 30 min and 60 km/h for 15min. How far does it travel in this time
A 0.03 kg (lead) bullethits a steel plate and melts and splatters on impact. Assuming that the bullet recieves 80% of the collision energy, at what minimium speed must it travel to melt on impact? How is this soved without knowing what the bullet ..
A 22.5-mW laser beam of diameter 1.98 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
in a fourth of july celebration a firecracker is launched from ground level with an initial velocity of 28.6 at 39.1
A 44 kg woman in an elevator is accelerating upward at a rate of 1.0 m/s2. What is the net force acting upon the woman
A sinusoidal wave on a string is described by the wave function y = 0.10 sin (0.85x ? 35t) where x and y are in meters and t is in seconds. Determine the power transmitted by the wave
A boat is traveling upstream in the positive direction of the x axis at 13 km/h with respect to the water of a river. What is the velocity of the boat with respect to the ground
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