Author Question: A mass of 3.0 kg rests on a smooth surface inclined 34 above the horizontal. It is kept from sliding ... (Read 32 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
A mass of 3.0 kg rests on a smooth surface inclined 34 above the horizontal. It is kept from sliding down the plane by a spring attached to a wall. The spring is aligned with the plane and has a spring constant of 120 N/m.
 
  How much does the spring stretch? A) 360 cm
  B) 240 cm
  C) 14 cm
  D) 24 cm
  E) 36 cm

Question 2

Earth's interior is warmed by ________ and Earth's surface is warmed by ________.
 
  A) radioactive processes; fusion in the Sun
  B) fission; fossil fuels
  C) volcanoes; solar energy
  D) terrestrial radiation; terrestrial radiation



Liddy

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

C

Answer to Question 2

Answer: A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

For a complete list of videos, visit our video library