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Assume a kid puts her bicycle on its back and starts the rear wheel spinning from rest to a final angular velocity of 250 rpm in 5 second.
(a) Evaluate what the angular acceleration?
(b) If she now slams on the brakes, causing an angular acceleration of - 87.3 rad/s2, determine how long does it take the wheel to stop?
Calculate the force of gravity on a spacecraft 25600 km (4 earth radii) above the Earth's surface if its mass is 1500 kg
A mass hung on a string that is wrapped around an axle on a wheel produces a tension in the string of 5.65 N. The axle has a radius of 0.045 m. What is the torque produced by the tension on the axle
After completing the experiment with the single slit, you wish to determine the width of the slit. Recall that the wavelength of the laser light is 632.8 nm. If the distance from the central spot to the first minimum in intensity is 4.0 cm and the..
a student sits on a freely rotating stool holding two weights each of mass 3.09 kg. when his arms are extended
A proton initially has a v = 4.0i-2.0j+3.0k and then 4 sec later has a v (Vector) = -2.0i - 2.0j+5.0 k (in m/s). For that 4.0 second, Determine the protons average acceleration
Particles pass through a single slit of width 2.3 mm, use the Heisenberg uncertainty principle to determine the minimum range of angles
What is the magnitude of the shell's acceleration just after it is released? What is the speed of the shell at this time
The two organ pipes are joined to form a single organ pipe then it will resonate with what frequency (consider fundamental mode of vibration of organ pipe)
A battery's potential is measured to be 9 V outside of a circuit, the battery is placed in a circuit and it delivers 0.2 A of current. compute the internal resistance of the battery
a 190-kg block is launched by compressing a spring of constant k 200nm by 15 cm. the spring is mounted horizontally and
Two protons are moving directly toward one another. When they are very far apart, What is the distance of closest approach?
If you were to build a pipe organ with open-tube pipes spanning the range of human hearing (20 Hz to 20 kHz), what would be the range of the lengths of pipes required
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