![subject](/tpl/images/cats/fizika.png)
As the cars of a rollercoaster race down a hill, energy transformations take place. Which of the following is true?
a Kinetic energy is stored in the cars as they move downhill and is released when they move uphill.
b Some of the potential energy is transformed to kinetic energy and other forms of energy.
c Some of the energy is destroyed as the car slows down and comes to a stop.
d The total energy doesn't change; the kinetic energy of the cars is equal to the potential energy of the cars.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:30
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time Ī required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 Ã 10^3 km for its moon europa.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 20:20
An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states
Answers: 1
![question](/tpl/images/cats/fizika.png)
You know the right answer?
As the cars of a rollercoaster race down a hill, energy transformations take place. Which of the fol...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 24.07.2019 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.07.2019 05:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 24.07.2019 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.07.2019 05:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 24.07.2019 05:00
![question](/tpl/images/cats/health.png)