Physics, 13.10.2020 03:01 genyjoannerubiera
Situation 2: A NASA engineer wants to see if salt will reduce the amount of ice and snow
buildup on the runway. She spread 200 lbs of salt on a test runway and simulates an airplane
landing by using test equipment. She then repeats the test on a runway without applying salt.
Hypothesis
If
then
I
Situation 3: The tree house detectives want to see if different smells travel at the same speed.
They spray a can of hairspray, peppermint air freshener, and insect repellant at the same time.
Six friends stand around them in a large circle, five feet from the center of the circle where the
three tree house detectives stood.
Hypothesis:
If
then
Situation 4: The tree house detectives want to know if the candy making process affects the
odor given off by candy. To conduct the experiment, the help Dr. D make orange taffy candy.
Hypothesis:
Answers: 1
Physics, 22.06.2019 14:00
Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.
Answers: 1
Physics, 22.06.2019 14:30
Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil
Answers: 2
Physics, 22.06.2019 23:40
A2.50 × 105 w motor is used for 26.4 s to pull a boat straight toward shore. how far does the boat move toward shore if a force of 4.20 × 104 n is applied by the motor?
Answers: 2
Physics, 23.06.2019 01:00
The bubbles in a carbonated soft drink are produced when carbonic acid decomposes to form carbon dioxide and water. in a closed system, this equilibrium exists as why does a carbonated soft drink lose carbonation when the container is left open? a.water evaporates, which favors the formation of h2co3. b.pressure decreases, which favors the formation of h2co3. c.the open container warms up, which causes more gas to escape. d.co2is removed, which favors the formation of h2co3.
Answers: 2
Situation 2: A NASA engineer wants to see if salt will reduce the amount of ice and snow
buildup on...
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