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A grinding wheel in the shape of a solid disk is 0.220 meter in diameter and has amass of 2.50 kilogram. The wheel is rotating at 2050 rpm about an axis through its center.
Evaluate what is the kinetic energy?
Evaluate how far would it have to free fall to obtain the same amount of kinetic energy?
A copper bar is moved to the right while its axis is maintained in a direction perpendicular to a magnetic field, what is the direction of the magnetic field
In everyday life we know that something described as 'white hot' is hotter than something described as 'red hot'. What is the physics behind these everyday sayings? The BB spectrum: Peak emission wavelength gets shorter as object gets hotter: Wave..
An ideal gas at 23.3°C and a pressure 1.60 105 Pa is in a container having a volume of 1.00 L. (a) Determine the number of moles of gas in the container. mol (b) The gas pushes against a piston, expanding to twice its original volume, while the press..
A man of mass 45 kg. is standing on a uniform rolling board of length 10 m. and mass (mb = 30 kg). how far does the board retreat
As the fragment falls through the atmosphere, it is heated and some of the material is vaporized, find the composition of this hot vaporized material from the light it emits
capacitor a and capacitor b both have the same voltage across their plates. however the energy of capacitor a can melt
A source emits sound uniformly in all directions. A radialline is drawn from this source. On this line, determine the radialpositions of two points, 1.28 m apart, such that the intensitylevel at one point is 2.46 dB greater than that at the other.
A softball player swings a bat accelerating it from rest to 2.6 rev/s in a time of .20s. compute the torque the player applies to one end of it
Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 108 m. Find the time it took for his voice to reach earth via radio waves.
A solenoid of length 4.48 cm and diameter 0.785 cm is wound with 160 turns per cm. what is the induced emf in one of the windings
After a 0.822 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.41E+6 m/s. What was the Compton shift in the photon's wavelength
a 2.0-nc point charge is placed at one corner of a square 1.5 m on a side and a -3.0-nc charge is placed on a corner
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