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An unstable particle called the pion has a mean lifetime of 25 ns in its own rest frame. A beam of pions travels through the laboratory at a speed of 0.575c.
(a) What is the mean lifetime of the pions as measured in the laboratory frame?
(b) How far does a pion travel (as measured by laboratory observers) during this time?
A 60 kg football player is running down the field at a speed of 5 m/s. He is being chased by a 40 kg player who is running at a speed of 6 m/s. How fast is the second player moving
What is the turntables angular speed as the block
A space station is constructed in the shape of a hollow ring of mass 6.00 x 10^4 kg and radius 130 m. how much work is done to get the space station spinning
A 4mC charge passes through the point (3m, 4m) at a speed of 100m/s. Find the components of the magnetic force felt by the charge
The average banana contains 0.436 g of potassium, and 0.012% of naturally occuring potassium is 40K, What is the activity of a freshly picked bunch containing four bananas
The wavelength of the laser beam used in a compact disc player is 483 nm. Estimate the spacing between the slits of the grating
A 15 kg brick rests on a roof that is at an angle of 40º to the horizontal. What is the component of the force into the surface of the roof
A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of 1.630 for red light of wavelength 690 nm. what is the angle between the two beams inside the glass
Find the wavelengths of these extremes at a temperature. find out the force exerted by the man on the rope, and the work done in dragging the box over a distance of 15m.
A thin soap film (n = 1.35) is suspended in air. The spectrum of light reflected from the film is missing two visible wavelengths of 490.8 nm and 589.0 nm, What is the thickness of the soap film
question what is the value of the inductance l so that the above circuit carries the largest current?data r
The drawing shows four point charges. The value of q is3.1 μC, and the distance d is 0.89 m. Find the total potential at the location P. Assume that the potential of a point charge is zero at infinity.
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