4. Maria wondered if different colors (red, orange, yellow, green, blue, and purple) of plastic wrap affected the time for bread to mold. She also wrapped a slices of bread in clear plastic wrap to see how they may normally mold. Before wrapping the same type of bread (Wonder Whole Wheat), she placed 5 ml of water in the center of each slice. The slices were of the same size and wrapped in the same manner and kept in a dark space at 75 degrees Fahrenheit. She measured the area of mold growth for one week after the mold first appeared. She observed 25 slices of bread for each color of wrap and the clear wrap as well. what is the constant variable the independant variable and the depentant variable
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Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
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Physics, 22.06.2019 17:30
This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.
Answers: 1
Physics, 23.06.2019 05:30
Which form of pure carbon is so hard that it can be used in cutting tools?
Answers: 1
4. Maria wondered if different colors (red, orange, yellow, green, blue, and purple) of plastic wrap...
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