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An elite Tour de France cyclist can maintain an output power of 450 W during a sustained climb. At this output power, how long would it take an 85kg cyclist (including the mass of his bike) to climb the famed 1100-m-high Alpe d'Huez mountain stage?
A generator of frequency 2500 Hz drives a series RLC circuit with an emf amplitude of 120 V. The resistance is 4.1 , the capacitance is 1.60 µF, What is the current amplitude
A solid metal sphere with radius 0.420m carries a net charge of 0.280nC. Find the magnitude of the electric field at a point 0.100m outside the surface of the sphere
The sound source of a destroyer's sonar system operates at afrequency of 22.0 kHZ. The speed of sound in water is 1482 m/s. What is the wavelength of the emitted sound.
The Mariana trench is located in the Pacific Ocean at a depth of about 11,000 meter below the surface of the water. estimate the weight of a jetliner whose mass is 4.21 x 105 kilogram
A car with 52cm -diameter tires accelerates uniformly from rest to 20m/s in 10s. How many ties does each tire rotate
a plane has a takeoff speed of 88.3 ms and requires 1365 m to reach that speed. determine the acceleration of the plane
A charge -8.36 µC is traveling at a speed of 7.83 x 106 m/s in a region of space where there is a magnetic field. What is the magnitude of the magnetic field
A 0.800-kg block oscillates on the end of a spring whose spring constant is k = 42.0 N/m. What is the fractional decrease in amplitude per cycle
An object of mass 5.13kg moves on a horizontal surface without friction under the influence of a spring with constant 9.88 N/cm. Write the equations of the position, velocity and acceleration of the oscillator as a function of time
The smallest marked division on a measuring tape is 1mm. If you use this tape to measure the length of a lab bench, what is the smallest possible uncertainty in the measurement
1) Explain how polarized sunglasses provide protection. In your answers, include an explanation of the meaning of polarization, two natural methods of polarization and what you would see if you rotated one polarizing lens with respect to another p..
The heat of vaporization of ethyl alcohol is about 200 cal/g. If 2.8kg of it were allowed to vaporize in the refrigerator, how many grams of ice would be formed from 0 °C water.
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