Answers: 1
Physics, 22.06.2019 09:00
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
Answers: 1
Physics, 23.06.2019 01:30
Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r
Answers: 1
Physics, 23.06.2019 02:00
Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning
Answers: 2
Sarah's mother gets a flat tire on her car while driving Sarah to school. They use a jack to change...
Mathematics, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Social Studies, 05.11.2020 01:00
Business, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
History, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Arts, 05.11.2020 01:00