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A textbook of mass 1.96 kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.110 m, to a hanging book with mass 2.95 kg . The system is released from rest, and the books are observed to move a distance 1.19 m over a time interval of 0.760 s. What is the moment of inertia of the pulley about its rotation axis?
A child's toy consists of a piece of plastic attached to a spring in the figure below. The spring is compressed against the floor a distance of 2.00 cm, estimate the force constant of the spring
What is the centripetal acceleration of a helicopter flying in a horizontal circle of a diameter 510 m at a speed of 120 m/s
An airplane has a speed 560 km/h. If a wind begins blowing from the southwest at a speed of 86.3 km/h, what will be the angle of west of south
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo which is greater than the terminal speed Vterm. Describe and explain how the velocity varies with time, and make a plot of Vy against t for t..
A certain type of laser emits light that has a frequency of 5.4 x10^14 Hz. The light, so, occurs as a series of short pulses, each lasting for a time of 2.7 x10-11 s.
A piece of wood is 0.600m long, 0.210m wide, and 0.08 m thick. Its density is 600kg/m3. find the mass of this volume of lead
A football punter accelerates a football from rest to a speed of 11 m/s during the time in which his toe is in contact with the ball (about 0.24 s). what average force does the punter exert on the ball
A jogger accelerates from rest to 3.49 m/s in 2.40 s. A car accelerates from 21.0 to 31.8 m/s also in 2.40 s, Find the magnitude of the acceleration of the jogger
If the frequencies are swept over a plusminus.gif2.00% range centered on 86.0 MHz, what is the range of wavelengths broadcast
The third-order fringe of 650 nm light is observed at an angle of 30°, How far apart are the slits
Assuming that the mass of the planet is distributed with spherical symmetry, what is its mass.
Illustrate when is velocity of the boulder zero? Illustrate what is the magnitude of the acceleration while the boulder is moving? What is the direction of the acceleration while the boulder is moving?
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