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What quantities are conserved in each case? Find the final speed V of the mass when it hits the post for each case?
A particle of mass 50g moves under an attractive central force of magnitude 4r^3 dynes. The angular momentum is equal to l,000 g*cm/s.
On a horizontal, frictionless table, a mass M is attached to the free end of a spring with the other end fixed. Another mass, m, moving at velocity S.
A beam of electrons (m=9.11 x 10 (-31) negative thirty first power has an average speed of 1.3 x 10^8 (eigth power) m*s (-1) s to to the negative first power
A figure skater during her finale can increase her rotation rate from an initial rate of 1.12 revolutions every 1.88 s to a final rate of 3.15 revolutions.
A uniform cylinder, mass M= 12 kg, radius R= .36 m, is initially rotating about a vertical axis through its center at angular velocity wo= 6.6 rad/sec.
A block with a hole through the center can slide in and out along the rod. Initially, a small piece of wax holds the block 10.0 cm from the pivot.
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