Answers: 3
Biology, 21.06.2019 12:30
Which statement accurately describes the rock layers? layer 8 is older than layer 1. layer 3 is younger than layer 6. layer 4 and layer 10 are the same relative age. layer 2 and layer 9 are the same relative age.
Answers: 1
Biology, 22.06.2019 02:30
Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?
Answers: 1
Biology, 22.06.2019 04:30
Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?
Answers: 3
Biology, 22.06.2019 05:30
Select the word from the list that best fits the definition a system made of 25 satellites
Answers: 3
What does the nuclear membrane do?...
History, 21.08.2019 14:50
Mathematics, 21.08.2019 14:50
Mathematics, 21.08.2019 14:50
English, 21.08.2019 14:50
Mathematics, 21.08.2019 14:50
Mathematics, 21.08.2019 14:50
History, 21.08.2019 14:50
History, 21.08.2019 14:50