Aperfect gas is contained in a cylinder of fixed volume and is separated into two sections a and b by a frictionless piston; no heat can pass ugh the piston. section b is maintained at a constant temperature of 300k; that is, all changes in section b are isothermal. there are 2.00 mol of gas molecules in each section and the constant-volume heat capacity of the gas is 20]k mol", which can be assumed to be constant. initially t v, m - t, 300 k, v v 2.00 dm3. energy is then supplied as heat to section a so that the gas in a expands, pushing the piston out and thereby compressing

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

How can you increase the strength of an electromagnet?