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As an ice skater begins a spin, his angular speed is 3.36 rad/s. After pulling in his arms, his angular speed increases to 5.23 rad/s. find the ratio of the skater's final moment of inertia to his initial moment of inertia?
a rabbit runs in a straight line with a velocity of 1.7 ms for a period of time rests for 12 s and then runs again
A ball is dropped from the top of a 6.10m tall building, falls straight downward, collides inelastically with the ground and bounces back up. How many bounces can the ball make
Using the Rayleigh criterion, one concludes that using fixed wavelength light that it is not possible to resolve details less than about
1.01 kg rolling hoop with a radius of 9 cm rolls without slipping. If the angular speed of the hoop is 2.09 rad/s , compute rotational kinetic energy of the rolling hoop in Joules
A ball of circumference 72.7 cm and mass 605 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, Calculate the buoyant force on the ball
Assume that a certain location on the Earth reflects 30.0% of the incident sunlight from its clouds and surface. (a) If the intensity of solar radiation is 1376 W/m2, what is the radiation pressure (Prad) on the Earth at this location?
The frequency of light reaching Earth from a particular galaxy is 16% lower than the frequency the light had when it was emitted. What is the speed of this galaxy relative to the Earth
What is error in the simple pendulum approximation
a solid lead cylinder and a solid platinum cylinder have the same mass. what is the ratio of the length of the platinum
A string, fixed at both ends,vibrates at a frequency of 12 Hz with a standing transverse wavepattern containing 3 loops. What frequency is needed
a 1.00 kg object is attached to a horizontal spring. the spring is initially stretched by 0.500 m and the object is
the electron in a hydrogen atom is infintely distant at zero potential energy and is at an average radius of a0=.0529 nm when bound by 13.6 eV. find the nearest principal quantum number in this state
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