A bowling ball encounters a h = 0.621 m vertical rise on the way back to the ball rack
Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 3.70 m/s at the bottom of the rise. Find the translational speed at the top...
A high-speed sander has a disk 4.00 cm in radius that rotates about its axis at a constant rate of 1100 revolutions per minute. Determine the angular speed of the disk in radians per second.
I get angular displacement / Time = 360rad/.0545454s
180=pi*rad <= need help figuring out radians...
A CD has a mass of 18.0 g and a radius of 6.11 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 19.6 rad/s in 0.768 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.
Formula I am using: .5MR^2 for the I...
A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotating beam sweeps across the earth, and the Earth receives a pulse of radio waves. For one particular pulsar, the time between two...
An object with a density of 681.0 kg/m3 and a mass of 1183.0 kg is thrown into the ocean. Find the volume that sticks out of the water. (use pseawater = 1024 kg/m3)
A hollow steel tube (diameter = 3.84 cm) is sealed at one end and loaded with lead shot to give a total mass of 0.161 kg. When the tube is floated in pure water, what is the depth, z, of its bottom end? :smile: