=4.5kgandradiusr=8.5cmcan rotate about a fixed vertical axis on frictionless bearings. a massless, stretchless cord passes around the equator of the shell, over a pulley of rotational inertia i = 3.0 x 10‐3 kg m2 and radius r = 5.0 cm, and is attached to a small object of mass m = 0.60 kg, which hangs on the end of the cord. there is no friction on the pulley's axle; the cord does not slip on the pulley. what is the speed of the object when it has fallen 82 cm after being released from rest? use energy considerations.

Explanation:

There is no friction in the physical system. Thus, according to the law of conservation of energy, recall that the object is released from rest:

Recall that the moment of inertia of a sphere is . The angular speed of the pulley is and the angular speed of the sphere is . So, we replace:

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

heat the gas and measure the pressure