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A hollow, thin-walled cylinder and a solid sphere start from rest and roll without slipping down an inclined plane of length 3.0 m. The cylinder arrives at the bottom of the plane 2.4 s after the sphere. Determine the angle between the inclined plane and the horizontal.
A woman stands on a scale in a moving elevator. Her mass is 60.9 kg, and the combined mass of the elevator and scale is an additional 819 kg. Starting from rest, the elevator accelerates upward. Through the acceleration, the hoisting cable applies a ..
After sliding down a snow-covered hill on an inner tube, Ashley is coasting across a level snowfield at a constant velocity of +2.8 m/s. How fast do the two of them slide across the snow together on the inner tube
A closely packed coil of 500 turns carriers a current of 2.0 A. at what rate must the current change in order to induce an emf of 75V
A projectile is fired with an initial speed of 164 m/s. Find the angle of projection such that the maximum height of the projectile is equal to 0.5 times its horizontal range
A certain semiconductor device requires a tunneling probability of T=10^-5 for an electron tunneling through a rectangular barrier with a barrier height of Vo=0.4eV. Determine the maximum barrier width
As a function of time, the velocity of the football can be written as. Calculate the average acceleration vector of the football
A molecule of DNA (deoxyribonucleic acid) is 2.26 µm long. The ends of the molecule become singly ionized: Determine the effective spring constant of the molecule
A charge of 3.80 10-6 C is placed on a small conducting sphere that is located at the end of thin insulating rod whose length is 0.22 m. The rod rotates with an angular speed of ω = 156 rad/s about an axis that passes perpendicularly through its o..
There is a +10 nC charge inside a cube of size 5 cm. What additional charge must be placed into the cube
An early model for an atom considered it to have a positively charged point nucleus of charge Ze, surrounded by a uniform density of negative charge up to a radius R. The atom as a whole is neutral. F
A 57 kg tightrope walker stands in the middle of a rope. Her weight makes the rope sag, evaluate the rope tension
What is velocity of the boat relative to the shore
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