Students are designing a balloon-powered car to test the effect of wheel size on the speed of the car. The size of the balloon is kept constant In each trial. The results of three trials are shown in the chart. Large Wheel Car Small Wheel Car Small Wheel Distance (m) Time (s) 5.0 20.8 Large Wheel Distance (m) Time (s) 5.0 17.1 Trial 1 Trial 2 Trial 3 5.0 21.1 5.0 16.8 5.0 20.9 5.0 17.0 What is the average speed for the small- and large-wheeled cars? A 0.2 m/s (small), 0.3 m/s (large) C. 4.0 m/s (small), 5.4 m/s (large) B. 0.7 m/s (small), 0.9 m/s (large) D. 100.0 m/s (small), 85.0 m/s (large)
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Chemistry, 21.06.2019 23:00, ayoismeisalex
Matches the chemical name of each oxide of phosphorus to its chemical formula
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Chemistry, 22.06.2019 10:50, mi364
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
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Chemistry, 22.06.2019 12:30, Svetakotok
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
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Chemistry, 22.06.2019 17:20, banna01man
Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.
Answers: 2
Students are designing a balloon-powered car to test the effect of wheel size on the speed of the ca...
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