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Figure skater is spinning at a rate of 1.0 rev/s with her armsoutstretched. She then draws her arms in to her chest,reducing her rotational inertia to 67% of its original value. What is her new rate of rotation?
q1. for each of the situations below the charged particle enters a region of uniform magnetic field. illustrate a
An x-ray photon is scattered from a free electron (mass m) at rest. The wavelength of the scattered photon is ?', and the final speed of the struck electron is v. Through what angle w is the photon scattered
Estimate the spacing between the two irrandiance maxima closest to the geometric of a plain wave illuminated straightedge if the source distance is 10.0 cm and the observation distance is 20.0 cm. Assume wavelength=632.8 nm.
When 195 g of a substance is heated to 335°C and then plunged into a 100 g aluminum calorimeter cup containing 134 g of water at 13.0°C, What is the specific heat of the substance
A truck has its front wheels (only) driven onto a scale and a reading of 3000 kg is obtained. How far is the center of gravity from the front wheels
a thin rod, of length L = 0.80 m and negligible mass that can pivot about one end to rotate in a vertical circle. what is the change in the gravitational potential energy of the ball-Earth system
Bats are capable of navigating using the earth's field-a plus for an animal that may fly great distances from its roost at night. What is the proper orientation of the coil
In a physics lab experiment for the determination of moment of inertia, a team weighs an object and finds a mass of 2.98 kg. They then hang the object on a pivot located 0.163 m from the object\'s center of mass and set it swinging at a small ampl..
A standard 100 (120 ) lightbulb contains a 7.80 -long tungsten filament. The high-temperature resistivity of tungsten is. what is the resistance of a household
A certain kind of glass has an index of refraction of 1.648 for blue light of wavelength 439 nm and an index of refraction of 1.619 for red light of wavelength 677 nm
A force F produces an acceleration a on an object of mass m=2 kg. a force 4F IS exerted on a second object and an acceleration of 8a results. ( this means that if four times the original force is exerted , a new object accelerates by an amount equal ..
exploring creation with physics 2nd edition module 14 practice problem 7 a 3.8mc charged particle m5.0kg is shot with
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