Steve holds the world record for the 100-meter dash. at his fastest, bolt ran 100 meters in 9.58 seconds. convert his speed into miles per hour. report your answer using 3 significant figures.
conversion factors: 1 mile = 1609 meters 60 seconds = 1 minute 60 minutes = 1 hour
use appropriate sig figs in answer!

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done