Answers: 2
Biology, 22.06.2019 02:30, ComicSans10
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 11:00, DuckieTime
If a grape were placed in a hypertonic solution what would happen and why?
Answers: 1
Biology, 22.06.2019 15:10, sydneip2394
Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier
Answers: 1
Biology, 22.06.2019 17:00, jess7kids98
Evolution acts upon the population of organisms and not on each individual organism
Answers: 3
Почему рыба колюка за один раз откладывает около
30 икринок, а рыба-дуна — около 300 млн?...
30 икринок, а рыба-дуна — около 300 млн?...
History, 09.04.2021 01:20
Mathematics, 09.04.2021 01:20
Biology, 09.04.2021 01:20
English, 09.04.2021 01:20
History, 09.04.2021 01:20
Mathematics, 09.04.2021 01:20
Chemistry, 09.04.2021 01:20