Biology, 27.08.2020 20:01 nails4life324
What two terms best describe the variable "air pressure inside the football" in this experiment? 3 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: independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative 1. Prepare 100 footballs. 2. Measure each football's air pressure. 3. Divide footballs into 10 groups. 4. Place the groups 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.
Answers: 1
Biology, 22.06.2019 01:00
Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand
Answers: 1
Biology, 22.06.2019 14:20
Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae
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Biology, 22.06.2019 19:00
What is the next step in muscle contraction after the actin changes shape
Answers: 2
What two terms best describe the variable "air pressure inside the football" in this experiment? 3 A...
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