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The negative pion is an unstable particle with an average lifetime of 2.1 x 10-8 s (measured in the rest frame of the pion) If the pion is made to travel at very high speed relative to a laboratory, its average lifetime is measured in the laboratory to be 4.50 × 107 s. Obtain the speed of the pion expressed as a fraction of c. Find what distance, as measured in the laboratory, does the pion travel during its average lifetime?
two blocks connected by a light cord over a pulley. This apparatus is known as an Atwood's machine. what is the speed of the lighter block
A spaceship of proper length 308 m takes 0.76 µs to pass an Earth observer. Determine the speed of this spaceship as measured
Consider a damped oscillator with m=0.2 kg, b= 4 N-m^-1 sec and k= 80N/m. Suppose that this oscillator is driven by a force F=Fo cos wt, What is the mean power input
A 3.18-nF parallel-plate capacitor is charged to an initial potential difference ?Vi = 100 V and is then isolated. How much work is required to withdraw the porcelain sheet
You have been given 1.752 g of copper from which you are to fashion a wire whose resistance is 2.519 ohms. What will be the density of the wire you fashion
A machine part rotates at an angular speed of 0.48 rad/s; its speed is then increased to 2.8 rad/s at the angular acceleration of 0.61 rad/s2.
a 15 kg object floating in the water has .21 of its volume above the surface of the water. what is the volume of the
In the absence of a nearby metal object, the two inductances LA and LB in a heterodynemetal detector are the same, and the resonant frequencies of thetwo oscillator circuits have the same value of 500 kHz.
A particle undergoes simple harmonic motion with maximum speed 2 m/s and maximum acceleration 3.7 m/s^2. Find the angular frequency. Find the period. Find the amplitude of the motion.
You have a ballistic pendulum. At the end of the event, the angle of the pendulum is ? with the length of the pendulum being L. Find the muzzle velocity of the projectile
A 700 kilogram car stopped at an intersection is rear-ended by a 1770 kilogram truck moving with a speed of 14.0m/s. evaluate what the final speed of the truck
a canoeist wants to paddle to an island which located 38m north and 100m east of him. he finds that by pointing his
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