as you take a short canoe trip on the Brazos River you paddle your canoe 200 miles up the river in 420 seconds and then turn around and paddle 350 miles down the river in 280 seconds what was your average speed during your canoe trip in miles per second

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.