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A 22 kg dog is standing on the edge of a stationary, frictionless turntable of rotational inertia 95 kg·m2 andradius 1.97 m. The dog walks once around the turntable. What fraction of a full circle does the dog's motion make with respect to the ground?
Sodium coolant with a specic activity of 0.05 Ci/cm3 passes through a long pipe 8 in. in diameter. estimate the thickness of a cylindrical concrete shield
The earth spins on its axis once a day and orbits the sun oncea year (365.24 days). Determine its angular velocity as it revolves around the sun
A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 1.5 x 1020 m, and the angular speed of the star is 3.7 x 10-15 rad/s. How long (in years) does it take for the star to make one revolution around the center..
When a Newton's ring apparatus is immersed in a liquid, thediameter of the eighth dark ring decreases from 2.92 cm to2.48cm. What is the refractive index of the liquid
A cart with a mass 340g moving on frictionless linear airtrack at an intial speed od 102m/s undergoes an elasticcollisionwith an initially stationary cart of unknown mass. what is the speed of the two-cart center of mass
Light from the sun allows a solar cell to move electrons from the positive to the negative terminal, What is the emf of this solar cell
At a grinding wheel has an angular velocity of 27.0 rad/s . It has a constant angular acceleration of 25.0 rad/s^2 until a circuit breaker trips at time t = 1.70 s. What was the acceleration as it slowed down
A glass rod is rubbed with a cloth, and the rod is left with a charge of +5.0nC. How many electrons did the cloth gain
Objects that are at rest relative to Earth's surface are in circular motion due to Earth's rotation. What is the radial acceleration of a tree
The pressure of a garden hose is 2 atmospheres. If the cross-sectional area of the hose is 4 cm^2 and the nozzle output area is .4cm^, How fast does the water leave the hose
A freely falling object at Earth’s surface drops vertically 5 m in 1 s. Earth’s curvature “drops” 5 m for each 8-km tangent. Discuss how these two facts relate to the 8-km/s speed necessary to orbit Earth.
Water is pumped into a storage tank from a well delivering 19.0 gallons of water in 26.0 seconds through a pipe of 1.00 in.2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well?
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