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Chemistry, 21.06.2019 23:30, mastershadow2018
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.
Answers: 2
Chemistry, 22.06.2019 06:00, jwood287375
When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?
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Chemistry, 22.06.2019 12:00, macylen3900
Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?
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Describe the hypotheses scientists use to explain the movement of tectonic plates. which hypothesis...
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