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A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.843 rad/s. You, with a mass of 71.9 kg, walk clockwise around the platform along its edge at the speed of 1.19 m/s with respect to the platform. Your 20.9-kg poodle also walks clockwise around the platform, but along a circle at half the platform\'s radius and at half your linear speed with respect to the platform. Your 17.7-kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform\'s radius from the center. Model the platform as a uniform disk with mass 90.9 kg and radius 1.87 m. Calculate the total angular momentum of the system.
When the door of the Chapel of the Mausoleum in Hamilton, Scotland, is slammed shut, If that echo were due to a single reflection off a wall opposite the door, how far from the door would that wall be
Compressed air can be pumped underground into huge caverns as a form of energy storage. The volume of a cavern is 4.9 Ã- 105 m3, how many homes could this internal energy serve
the security alarm on a parked car goes off and produces a frequency of 1220 Hz. The speed of sound is 343 m/s. At what speed are you driving
A point charge of ?3.3 ?C is located in a uniform electric field of 34 N/C. You move the charge, find the resulting change in the electric potential energy of the system
What is the stopping distance when the surface is dry and the coefficient of friction is 0.620.
The right figure shows a force of magnitude F = 12.0 N applied to an 8.00 kg block at a downward angle of ? = 30.0°. find the magnitude of the frictional force on the block
What is inductance of the solenoid
A 37.8 kg box initially at rest is pushed 5.27 m along a rough, horizontal floor with a constant applied horizontal force of 81.3836 N. Find the work done by the friction
If an isolated conducting sphere 8.9 cm in radius has a net charge of 6.8 ?C and if V = 0 at infinity, what is the potential (in V) on the surface of the sphere
An air-filled parallel-plate capacitor has plates of area 2.10 cm2 separated by 0.50 mm. The capacitor is connected to a 3.0 V battery. What is the charge on the capacitor
The atomic mass of 5626Fe is 55.934939 u, How much kinetic energy will the products of the decay have
A helicopter is ascending vertically with the speed of 5.79. At a height of 127 above the Earth, a package is dropped from a window. How long take the package to hit the ground.
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