Answers: 3
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 05:00
Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist
Answers: 1
Biology, 22.06.2019 05:10
1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?
Answers: 2
How does auxin produce gravitropism in a plant that is placed on its side? how does auxin produce g...
Health, 04.02.2022 01:20
Mathematics, 04.02.2022 01:20
Mathematics, 04.02.2022 01:30
Biology, 04.02.2022 01:30
English, 04.02.2022 01:30
Social Studies, 04.02.2022 01:30
Mathematics, 04.02.2022 01:30