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 143 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?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

The relationship between free energy and electron movement along the electron transport chain The relationship between free energy and electron movement along the electron transport chain
Basic Types of Energy Basic Types of Energy
The Punnett square demonstrates how the F2 ratio arises from an F1 x F1 cross. The Punnett square demonstrates how the F2 ratio arises from an F1 x F1 cross.
The demand for energy is met by burning coal and other fossil fuels The demand for energy is met by burning coal and other fossil fuels
Humans take in energy by eating food Humans take in energy by eating food
Expressing amounts of energy in different energy units is necessary to solve many chemistry ... Expressing amounts of energy in different energy units is necessary to solve many chemistry ...
Video: Studying the Left and Right Brain Independently

For a complete list of videos, visit our video library