This topic contains a solution. Click here to go to the answer

Author Question: What explanation does general relativity provide for gravity? A) Gravity is the result of curved ... (Read 50 times)

tichca

  • Hero Member
  • *****
  • Posts: 554
What explanation does general relativity provide for gravity?
 
  A) Gravity is the result of curved spacetime.
  B) Gravity is directly proportional to the mass of the attracting body.
  C) Gravity is inversely proportion to the radius of the body.
  D) Gravity is the opposite of the electromagnetic force.
  E) Gravity can affect only massive particles, not massless photons.

Question 2

What do we mean by the diffraction limit of a telescope?
 
  A) It is the maximum size to which any telescope can be built.
  B) It describes the farthest distance to which the telescope can see.
  C) It describes the maximum exposure time for images captured with the telescope.
  D) It is the best angular resolution the telescope could achieve with perfect optical quality and in the absence of atmospheric distortion.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bobsmith

  • Sr. Member
  • ****
  • Posts: 316
Answer to Question 1

A

Answer to Question 2

D




tichca

  • Member
  • Posts: 554
Reply 2 on: Jul 27, 2018
Excellent


adf223

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

For a complete list of videos, visit our video library