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Q1. A Ferris wheel is a vertical, circular amusement ride with radius 6 m. Riders sit on seats that swivel to remain horizontal. The Ferris wheel rotates at the constant rate, going around once in 6.4 s. Consider a rider whose mass is 70 kg.
Q2. Assume a satellite is in a circular orbit 4.125 Earth radii above the surface of the Earth (5.225 Earth radii from the center of the Earth). By how much does it have to increase its speed in order to be able to escape Earth?
A rock band playing an outdoor concert produces sound at 120dB 5.0m away from their single working loudspeaker. What is the intensity (I) 5 m from the loudspeaker
At which wavelengths (or energies) will you observe lines in infrared absorption (a phonon absorbs a photon) and raman scattering spectra? The temperature is 300 k. raman scattering is excited with a cw Argon laser at 514.5 nm.
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -1.0799 N when separated by 50 cm, center-to-center. What were the initial charges on the spheres
An object moves along the x axis according to the equation x = 3.35t2 ? 2.00t + 3.00, At what time is the object at rest
consider the earth/atmosphere/ionosphere as an equivalent RC circuit with a total resistance of 230 ohm and a total capacitance of 2.9F. how long does this amount of discharge take in hours
A water slide launches a child horizontally above a swimming pool. How far from the launch point does the child land in the water
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.58 m, Calculate the power emitted by the human body
At very fast car races the sound of the engine as a car approaches is much different than when it passes you. How fast would the car need to be going to have the change in frequency be one octave
De Broglie postulated that the relationship ? = h/p is valid for relativistic particles. What is the de Broglie wavelength for a (relativistic) electron
q1. a sealed bottle has water in it and two tubes enter the bottle through the seal. tube b is attached to a pump at
A commonly used method of fastening one part to another part is called "shrink fitting." By how many Celsius degrees should the rod be cooled
A disk, initially rotating at 106 rad/s, is slowed down with a constant angular acceleration of magnitude 2.24 rad/s2. How much time does the disk take to stop
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