Answers: 2
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 06:00
Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content
Answers: 1
What is 120 divided by 10 + 3/2 x 7...
Mathematics, 30.10.2021 21:10
Mathematics, 30.10.2021 21:10
Mathematics, 30.10.2021 21:10
Biology, 30.10.2021 21:10
World Languages, 30.10.2021 21:10
Mathematics, 30.10.2021 21:10
Mathematics, 30.10.2021 21:10
English, 30.10.2021 21:10
English, 30.10.2021 21:10
Mathematics, 30.10.2021 21:10
Computers and Technology, 30.10.2021 21:10
Mathematics, 30.10.2021 21:10
Chemistry, 30.10.2021 21:10