a = (0.2 0) rad/s? 2.5 ft

The cord, which is wrapped around the disk, is given an acceleration of a=(12t)m/s2, where t is in seconds A) Starting from rest, determine the angular displacement of the disk, measured clockwise, when  t  = 3  s   B) Starting from rest, determine the angular velocity of the disk, measured clockwise, when  t  = 3  s   C) Starting from rest, determine the angular acceleration of the disk, measured clockwise, when  t  = 3  s  .

υο VA W= A r v B CC A gear sits between two moving racks. If the top rack moves at a velocity of v₁ = 0.85 m/s to the left and the bottom rack moves at a velocity of VB = 0.3 m/s to the right, determine the velocity at the center of the gear, the magnitude of the angular velocity of the gear, and the distance to the ICZV from point B. The gear has a radius of r = 0.08 m. m/s Select an answer rad/s Select an answer VB BY UBC Engineering

A manufacturer claims that the average tensile strength of thread A exceeds the average tensile strength of thread B by at least 12 kilograms. To test this claim, 50 pieces of each type of thread were tested under similar conditions. Type A thread had an average tensile strength of 86.7 kilograms with a standard deviation of 6.28 kilograms, while type B thread had an average tensile strength of 77.8 kilograms with a standard deviation of 5.61 kilograms. Test the manufacturer’s claim using a 0.05 level of significance. 1. Determine the Z calculated in two decimal places. 2. Determine the Z table in two decimal places. 3. Is the manufacturing claim statistically valid? yes or no