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Thomson's Experiment: Instead of turning off the electric field to determine the charge-to mass ratio, Thomson proceeded to switch off the magnetic field
A flywheel initially rotating at a speed of 800 rev/min, is brought to rest with uniform angular deceleration in 6’s
Using the physical conditions present in the universe during the era of recombination (T=3000 and pm=10^-18 kg/m^3)
Determine the magnitude and direction of the resultant linear acceleration of a point A on the flywheel 0.2 s before coming to rest.
A uniform solid sphere of radius 0.500 m and mass of 15.0kg turns counterclockwise about a vertical axis through its center.
Convert the following angles from degrees to radians, to three significant figures: a) 15°, b) 45°, c) 90° and d) 120°.
Prove that the total torque of the ring multiplied by the time interval found in part b is equal to the change in angular momentum, found in part a.
What is the magnitude of its angular momentum (in kg.m^2/s) relative to the center of the racetrack?
What is the distance from the Earth to the star
Two equal weights of mass M each are connected by a cord passing over a frictionless pulley of mass mp and radius r.
As the drawing shows, a carpenter on a space station has constructed a 30.0 degree ramp. A rocket moves past the space station with a relative speed of 0.73c
How much work is required to bring a 2.00-kg mass, 4.00-cm radius uniform sphere from rest to a rotational speed of 30.0 revolutions per second.
Suppose a 60kg person stands at the edge of a 6.0m diameter circular platform, which is mounted on frictionless bearings.
The basic assumptions behind the Theory of Relativity are that the speed of light in a vacuum is a universal constant and that all motion and perception
A diver can change her rate of rotation in the air by "tucking" her head in and bending her knees. Lets assume that when she is stretched.
A 1.62 oz golf ball with a 1.70 in. diameter is hit by a club at point P. Velocity magnitude of the ball's center of mass is 180 ft/s after the impact.
Suppose electrons with E=13.0 eV approach a potential barrier of height 6.0 eV.
In the Tevatron accelerator/storage ring at the Fermi National Accelerator Laboratory, two beams of protons travel in opposite directions each
A uniform cylinder (A) has a mass ( m = 3 kg ), radius ( r = 150 mm ), and can roll without sliding on a cart ( C ) of mass ( M = 5 kg ).
In the past, most experiments in particle physics involved stationary targets: one particle (usually a proton or an electron) was accelerated to a high energy E
A woman stands at the center of a platform. The woman and the platform rotate with an angular speed of 1.30 rad/s.
A plane leaves Seattle, flies 85 mi at 22o north of east, and then changes direction to 48o south of east.
The exhaust temperature of a Carnot heat engine is 350 degrees C. What is the intake temperature if the efficiency is 25%?
Estimate the uncertainty in the momentum of an electron whose location is uncertain by a distance of 2 Angstrom. What is the uncertainty in the momentum
What is the final velocity of a hoop that rolls without slipping down a 5.00 m high hill, starting from rest?