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A skier slides horizontally along the snow for a distance of 28 meter before coming to rest. The coefficient of kinetic friction between the skier and the snow is μk = 0.070.Initially, determine how fast was the skier going?
A 2.20 kg mass on a spring has displacement as a function of time given by the equation x(t)= (7.40 cm) cos [4.16 rad/s) t - 2.42 rad]. Find the time for one complete vibration
A diving bell with interior air pressure equal to atmospheric pressure is submerged in Lake Michigan at a depth of 142.1 m. What is the magnitude of the net force on the viewing port
A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 255 keV. What was the wavelength of the photon
Jonathan is riding a bicycle and encounters a hill of height h. What is the total external work done on the system of Jonathan and the bicycle between the time he starts up the hill and the time he reaches the top
A total current of 10 Amp flows into a parallel combination of a 8 ohm and a 11 ohm resistor. What current flows through the 8 ohm resistor?
A mass of 20g is attached to a spring, and undergoes simple harmonic motion with a period of T=0.7 s. What is the force constant of the spring
monochromaticlight of wavelength lambda 620nm from a distant sources passes through a slit 0.450 mm wide. the
A person hums into the top of a well and finds that standing waves are established at frequencies of 44.0, 132.0, and 220.0 Hz. The frequency of 44.0 Hz is not necessarily the fundamental frequency. The speed of sound is 343 m/s. How deep is the well..
The catapult on an aircraft carrier can take an aircraft from 0 to 209 mph (the launch speed) in 9 seconds, at which time the aircraft launches
An RLC circuit has a resistance of 300 ohms and an inductance of 20 mH. its oscillation frequency is 5000 Hz. At time t= 0 the current is 20 mA and there is no charge on the capacitor. what is the current after six complete cycles?
The displacement of a standing wave on a string is given by D = 9.9 sin(0.55x)cos(56t), where x and D are in centimeters and t is in seconds. What is the distance (cm) between nodes
It takes a flea 1.0 x 10-3 sec to reach a peak speed of 0.74 m/s. If the mass of the flea is 0.45 x 10-6 kilogram, determine what is the average power required
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