You can use the graph to find out the average volume of carbon dioxide gas given off per second in the period between 10 seconds and 30 seconds. To do this you should draw a line at 10 seconds on
the horizontal axis up to where it meets the line of the graph. Then draw another line up at 30
seconds. Draw a line across as shown in the graph below.
70
60
50
40
volume of carbon
dioxide / cm3
30
20
10
0
20
40
60
80
100
time / s​

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?