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A particle lives for a short time before breaking apart into other particles. Suppose it is moving at a speed of 0.992c, and an observer who is stationary in a laboratory measures the particle's lifetime to be 5.00 x 10-8 s.
According to this hypothetical person, how far does the laboratory move before the particle breaks apart?
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 44 dB by an observer 10 km away. What is the average power generated by the horn
A 2kg mass attached to a spring undergces simple hamonic motion with an aamplitude of 0.1 m. Deteminethe total energy of this mass spring system
A dog running in an open field has components of velocity v_x = 3.2 m/s and v_y = -2.1 m/s at time t_1 = 11.6 s. For a time interval from t_1 = 11.6 s to t_2 = 19.7 s, the average acceleration of the dog has magnitude 0.30 m/s^2 and direction 35.0..
A plastic cylinder of length 36 cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature 16 cm. How far will the image of the object lie from the right end
Nichrome wire of cross-sectional radius 0.768 mm is to be used in winding a heating coil. determine the required resistance of the coil
A 2.10-µF capacitor was fully charged by being connected to a 12.0-V battery. Calculate the damped frequency of the resulting circuit
A beam of light is incident from air on the surface of a liquid. find the critical angle for the liquid when surrounded by air
Two capacitors C1 = 5.6 ?F, C2 = 13.7 ?F are charged individually to V1 = 16.4 V, V2 = 6.1 V. Calculate the final potential difference across the plates of the capacitors once they are connected
A 5 kg mass attached to a horizontal spring is pulled from its equilibrium position by 4 m and let go. find is the maximum velocity of the mass
The acceleration due to gravity at the surface of a planet is 18 m/s2. find the speed of the satellite to maintain this stable orbit
A gas of hydrogen atoms is in the n = 2, l= 1 state. Find the spacing between the three degenerative levels of Ml
A thief was trying to pull a 20 kg coffer (a coffer is a box usually used to hold valuables) along an essentially frictionless horizontal surface. What was the work done on the coffer by the rope
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