Physics, 24.11.2020 19:10, ryliepeloquinf
Explain why the top of the loop cannot be the same height as (or higher than) the top of the first hill. Assume the roller coaster and its surroundings are close to a closed system. Use what you know about energy transformations and the effects of friction within a closed system to write your answer.
Passage
Examine this diagram of a roller-coaster track. The very top of the first hill (point B) is higher than the very top of the loop (point D). After the cars reach point B, this roller coaster needs no additional energy to complete its trip.
Answers: 3
Physics, 21.06.2019 22:40, exoticbunnylover123
Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod
Answers: 1
Physics, 21.06.2019 23:30, coryowens44
An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector between points f and g.
Answers: 1
Physics, 22.06.2019 03:00, chastynpatrick
If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star
Answers: 3
Physics, 22.06.2019 05:00, anime333
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
Explain why the top of the loop cannot be the same height as (or higher than) the top of the first h...
Mathematics, 11.10.2020 08:01
Mathematics, 11.10.2020 08:01
History, 11.10.2020 08:01
Mathematics, 11.10.2020 08:01
Mathematics, 11.10.2020 08:01
Social Studies, 11.10.2020 08:01