An object is moving with a constant acceleration on a straight road. The equation between velocity and time is found to be v=2 +5t, where v is the velocity in metres per second and t is time . a. Plot the graph between v and t.
b. Find acceleration at
i. t=1 second
ii. t= 2 seconds

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

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 air that we breath is made mostly of which gaseous molecule