Physics, 22.01.2021 04:20, adrianVocke5685
Potential Energy of a Rollercoaster At a particular point on a track (call it Position A), a rollercoaster ( m = 120 kg m=120kg) is at a height of 32 m 32m above the ground. The track drops steeply down to a height of 5.2 m 5.2m above the ground, rises to 26 m 26m above the ground, then drops again to a height of 15 m 15m above the ground at Position B. From Position A to B, the rollercoaster covers a distance of 430 m 430m. What is the change in gravitational potential energy (in Joules) of the rollercoaster from Position A to B?
Answers: 3
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
Physics, 22.06.2019 11:00, kylieweeks052704
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 1
Potential Energy of a Rollercoaster
At a particular point on a track (call it Position A), a roller...
Mathematics, 23.12.2019 16:31
Mathematics, 23.12.2019 16:31
Health, 23.12.2019 16:31
Computers and Technology, 23.12.2019 16:31
World Languages, 23.12.2019 16:31
Mathematics, 23.12.2019 16:31