This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the ratio of potential energy to kinetic energy for a comet that has just enough energy to ... (Read 126 times)

aabwk4

  • Hero Member
  • *****
  • Posts: 593
on: Jul 29, 2018
What is the ratio of potential energy to kinetic energy for a comet that has just enough energy to escape from the Sun's gravitational field?
 
  A) 1/2
  B) 1
  C) 2
  D) -1
  E) -2

Question 2

A new roller coaster contains a loop-the-loop in which the car and rider are completely upside down.
 
  If the radius of the loop is 13.2 m, with what minimum speed must the car traverse the loop so that the rider does not fall out while upside down at the top? Assume the rider is not strapped to the car.
  A) 11.4 m/s
  B) 12.5 m/s
  C) 10.1 m/s
  D) 14.9 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

raenoj

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

A


aabwk4

  • Hero Member
  • *****
  • Posts: 593
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


raenoj

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Potential uses of stem cells Potential uses of stem cells
Halley’s Comet Halley’s Comet
Transformation and Evolution of a Long-Period Comet Transformation and Evolution of a Long-Period Comet
The Sun and the radiant energy The Sun and the radiant energy
The Three Components of Energy Needs The Three Components of Energy Needs
The flow of energy and the cycling of materials maintain nature’s organization The flow of energy and the cycling of materials maintain nature’s organization
Video: Import of Dietary Glucose from Intestines to Bloodstream

For a complete list of videos, visit our video library