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

Author Question: How much energy is necessary to place three charges, each of 2.0 C, at the corners of an equilateral ... (Read 16 times)

jman1234

  • Hero Member
  • *****
  • Posts: 560
on: Jul 27, 2018
How much energy is necessary to place three charges, each of 2.0 C, at the corners of an equilateral triangle of side 2.0 cm?
 
  What will be an ideal response?

Question 2

A basketball is thrown with a velocity of 20. m/s at an angle of 60. above the horizontal. What is the horizontal component of its instantaneous velocity at the exact top of its trajectory? (Neglect air friction.)
 
  A) 10. m/s
  B) zero
  C) 20. m/s
  D) 17.3 m/s
  E) 20. tan(60) m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frejo

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 27, 2018
Answer to Question 1

5.4 J

Answer to Question 2

A


jman1234

  • Member
  • Posts: 560
Reply 2 on: Jul 27, 2018
Gracias!

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Energy in China Energy in China
Comparison of energy consumption in developing and industrialized nations Comparison of energy consumption in developing and industrialized nations
El Niño events release energy El Niño events release energy
Expressing amounts of energy in different energy units is necessary to solve man Expressing amounts of energy in different energy units is necessary to solve man
how much energy is needed to heat 77.0g H2O(s) from -10.0 C to 0.0 C? how much energy is needed to heat 77.0g H2O(s) from -10.0 C to 0.0 C?
Energy flow in the light-dependent reactions of photosynthesis Energy flow in the light-dependent reactions of photosynthesis
Video: Inflammation

For a complete list of videos, visit our video library