Physics, 23.05.2020 06:02 avadestinyy
A 1100kg rollercoaster car is pulled up to the top of a track which is 19 meters above the ground
A. How much gravitational potential energy does the car gain when it is pulled from the ground to the top of the track?
B. The same car is left to roll down the track, and rolls down into a dip which is 5 meters above the ground. Assuming negligible friction and air resistance, what is the kinetic energy of the car at the bottom of the dip?
C. What is the speed of the car at the bottom of the dip?
Answers: 2
Physics, 22.06.2019 13:20
This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?
Answers: 3
Physics, 23.06.2019 00:50
Which of the following examples illustrates static friction? a box sits stationary on a ramp. a ball rolling on the lawn eventually comes to rest. a car rounds a curve on a road. a fish swims upstream.
Answers: 1
Physics, 23.06.2019 04:40
2) a cubical block of stone is lowered at a steady rate into the ocean by a crane, always keeping the top and bottom faces horizontal. which one of the following graphs best describes the buoyant force b on this block as a function of time t if the block just enters the water at time t = 0 s?
Answers: 3
Physics, 23.06.2019 04:50
How does the motion of an airplane compare to the motion of a rocket ?
Answers: 1
A 1100kg rollercoaster car is pulled up to the top of a track which is 19 meters above the ground
Chemistry, 29.10.2019 21:31
English, 29.10.2019 21:31
Mathematics, 29.10.2019 21:31
Mathematics, 29.10.2019 21:31
English, 29.10.2019 21:31
Chemistry, 29.10.2019 21:31
Social Studies, 29.10.2019 21:31
Health, 29.10.2019 21:31
Chemistry, 29.10.2019 21:31
History, 29.10.2019 21:31
Health, 29.10.2019 21:31