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A compact disk player has just been turned off. A disk deceleratesuniformly from an initial angular velocity of 7.20 rev/s. The disk rotatesthrough 3.25 revolutions beforecoming to rest. What is the tangential acceleration of a point onthe disk 3.50 cm from the axis?
dolphins communicate using sound waves underwater. suppose a dolphin emits a sound wave with frequency 660 hz while
A coach tells his little league players that hitting a .275 batting average, within 7% percentage error, means that they had a really great season. 7-year-old Tommy ended the season hitting a .258 batting average. According to his coach, did he ha..
Radiation at temperature Ti fills a thermally insulated cavity of volume V. If the cavity expands isentropically to volume rV, how much work is done by the radiation , as a fraction of its initial energy? How much work would be done if the expansion ..
q1. what effect will increase in temperature from 25 degree celsius to 32 degree celsius of the metal metre stick have
A small remote-control car with a mass of 1.59 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5 m.
You are driving to grocery store at 21. You are 100 from an intersection when the traffic light turns red. Presume that your reaction time is 0.75 and that your car brakes with constant acceleration. How far from the intersection are you when you ..
A coin is located 18.0 cm to the left of a converging lens (f = 16.0 cm). A second, identical lens is placed to the right of the first lens, Find the separation between the lenses
A lever uses an effort arm of 4.75 m and has a resistance arm of 21.5 cm. What is the mechanical advantage of the lever
A parallel-plate capacitor with plate separation d = 1.6mm is made up of two plates of area S=3.6 cm2. The charges on the facing plate surfaces have the same magnitude Q but opposite signs.
A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley, calculate the magnitude of their acceleration, a, and the tension in the rope, T
Determine the highest speed the stone can attain without breaking the string.
A total charge of 1.96 μC is distributed uniformly over anentire region, giving a charge per volume of 245μC/m3. A Gaussian surface encloses 1.23μC of that charge. What is the volume of that entireregion?
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