A potter's wheel of radius 0.4 m and mass 93.8 kg is freely rotating at 33 rev/min. The
potter can stop the wheel in 9.8 s by pressing
a wet rag against the rim.
What is the angular acceleration of the
wheel?
Answer in units of rad/s2.
How much torque does the potter apply to the wheel?
Answer in units of N•m

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

The substances that are necessary for producing of certain hormones and that store and transport vitamins

You can decrease the resistance of a length of wire by