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Calculate the rotational inertia of a wheel that has a kinetic energy of 24,400 J when rotating at 641 rev/min.
A bucket of water of mass 14.8kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.290m with mass 12.5kg. What is the time of fall
One of the effects of significant global warming would be the melting of part or all of the polar ice caps. This, in turn, would change the length of the day (the period of Earth's rotation). Explain why. Would the day get longer or shorter?
A ball traveling with an initial momentum of 2.5 kg m/s bounces off a wall and comes back in opposite direction with a momentum of -2.5 kg m/s. What is the change in momentum of the ball
A transformer consists of 300 primary windings and 832 secondary windings. 1. If the potential difference across the primary coil is 22.5 V , what is the voltage across the secondary coil? 2. If the potential difference across the primary coil is 22...
The eye is most sensitive to light having a frequency of 5.45 1014 Hz, which is in the green–yellow region of the visible electromagnetic spectrum. What is the wavelength of this light? m
An open container holds ice of mass 0.595kg at a temperature of -13.5 celcius . The mass of the container can be ignored. How much time passes before the ice starts to melt
What are (a) the energy, (b) the momentum, and (c) the wavelength of the photon that is emitted when a hydrogen atom undergoes a transition from the state n = 3 to n = 1?
A fighter plane flying at constant speed 510 m/s and constant altitude 7400 m makes a turn of curvature radius 5300 m. What is his/her apparent weight during the plane's turn
X rays diffract from a crystal in which the spacing between atomic planes is 0.193nm . The second-order diffraction occurs at 42.0?
One-eighth of a sample of Th remains undercayed after 54 days. What is the half-life of this thorium isotope
A 26 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. what was the muzzle speed of the bullet
From the top of a 70m building, you throw a ball straight up at 6m/s. The ball misses the building on the way down. what is the maximum height of the ball
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