Chemistry, 08.09.2021 19:30 zamorano5912
Air pressure is measured in pascals. For a professional American football game, the ball should be inflated to about 90,000 pascals. Scientists studied the effects of air temperature on the pressure inside American footballs by taking these steps:
1. Prepare 100 footballs.
2. Measure each football's air pressure.
3. Divide footballs into 10 groups.
4. Place the groups in different lockers cooled to different air temperatures.
5. After 12 hours, remove the footballs from lockers.
6. Measure each football’s pressure again.
7. Compare the new pressures to the starting pressures.
What two terms best describe the variable "air pressure inside the football" in this experiment?
a independent, qualitative
b independent, quantitative
c dependent, qualitative
d dependent, quantitative
Answers: 3
Chemistry, 22.06.2019 16:00
How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )
Answers: 2
Chemistry, 23.06.2019 04:00
If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?
Answers: 1
Chemistry, 23.06.2019 15:30
Among these processes, which is the slowest chemical reaction? a. digesting food b. boiling an egg c. tarnishing of silver d. melting of a glacier
Answers: 2
Air pressure is measured in pascals. For a professional American football game, the ball should be i...
Biology, 29.11.2021 21:40
Mathematics, 29.11.2021 21:40
Mathematics, 29.11.2021 21:40
History, 29.11.2021 21:40
Biology, 29.11.2021 21:40
English, 29.11.2021 21:40
Biology, 29.11.2021 21:40
Arts, 29.11.2021 21:40
Arts, 29.11.2021 21:40
Mathematics, 29.11.2021 21:40
Mathematics, 29.11.2021 21:40