15 points and brainlist! plz
on a typical speed vs. time graph, an object's speed is indicated by the

a. slope of the line on the graph

b. length of the line on the graph

c. spacing of the numbers on the time axis

d. spacing of the numbers on the speed axis

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?