Physics, 15.11.2020 21:30 shartman22
The Cub Scouts are having their annual Pinewood Derby Race. The unpowered soap box racers, like the one shown below, are
lined up at the top of a hill and ready to begin
Sem
What gives the cars their potential energy?
OA
their wheels
OB. gravity
their speed
Answers: 3
Physics, 22.06.2019 02:00
In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth
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Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2
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Physics, 23.06.2019 08:30
[05.02] what is the best explanation of the kinetic molecular theory as it relates to the energy of the molecules in the states of matter? (1 point) the molecules in a gas have greater kinetic energy than those in a liquid, which in turn have greater kinetic energy than the molecules in a solid. kinetic energy cannot be created nor destroyed, and, as a result, all states of matter have the same kinetic energy. the molecules in a gas have greater kinetic energy; therefore, they are more tightly packed than the molecules in either a liquid or a solid. the molecules in gases and liquids, in constant motion, have greater kinetic energy than those in a solid, which do not move or vibrate because their position is fixed.
Answers: 2
Physics, 23.06.2019 11:30
In which of these samples do the molecules most likely have the most kinetic energy? (2 points) a. solid ice at -5°c b. ice water at 0°c c. liquid water at 98°c d.water vapor at 150°c
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The Cub Scouts are having their annual Pinewood Derby Race. The unpowered soap box racers, like the...
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