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Muons are subatomic particles that are produced several milesabove the earth's surface as a result of collisions of cosmic rayswith atoms in the atmosphere. These muons rain down more orless uniformly on the ground, although some decay on the waysince the muon is unstable with a proper half life of 1.5 μ s(1 μ s =10-6s). In a certain experiment amuon detector is carried in a balloon to an altitude of 2000 m, andin the course of 1 hour it registers 650 muons traveling at 0.99ctoward the earth. If an identical detector remains at sealevel, how many muons would you expect it to register in 1hour?
An ac source is connected to a resistor R = 75?, an inductor L = 0.01 H, and a capacitor C = 4 ?F. What is the phase difference ? between the voltage of the source and the current in the circuit when the frequency of the source is equal to half the r..
A ball rolls off a table and falls 0.70 m to the floor, landing with a speed of 4.3 m/s. What is the magnitude of the acceleration of the ball just before it strikes the ground
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 46 dB by an observer 10 km away. What is the average power generated by the horn
A model of a red blood cell portrays the cell as a sphericalcapacitor, a positively charged liquid sphere of surface areaA separated from the surrounding negatively charged fluidby a membrane of thickness t.
A steel tube, which is closed at both ends, is filled with air. The air in the tube is vibrating at a frequency of 160·Hz. Use 340·m/s for the speed of sound in air. What is the wavelength of the sound waves in the tube
A diver 22m deep in 12°C fresh water exhales a 0.8 cm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 25°C? Hint: suppose that the air bubble is always in thermal equilibriu..
Consider the conical pendulum, a mass on the end of a string, with the other end of the string fixed to the ceiling. what is the speed (in m/s) of the mass as it swings
Ocean waves are traveling to the east at 4.1 m/s with a distance of 18 m between crests. With what frequency do the waves hit the front of a boat when the boat is at anchor
The magnitude of q is chosen to make the potential difference between spheres 430 V, with the inner sphere at higher potential. Compute q.
A .075 Kg toy rocket is launched straight up from the ground at 19 m/s. Calculate the power of gravity force during the first 10s
a point charge q is held at a distance of 2a from the center of an isolated and the conducting sphere of radius a. what is the potential of the sphere
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