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

Author Question: An object from which light cannot escape is called a (a) a black hole (b) a neutron star (c) a ... (Read 85 times)

mp14

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
An object from which light cannot escape is called a
  <-- if ppt--><--endif-->
  (a) a black hole
  (b) a neutron star
  (c) a white dwarf
  (d) a type I supernova

Question 2

A 2.0-kg mass swings at the end of a light string (length = 3.0 m). Its speed at the lowest point on its circular path is 6.0 m/s. What is its kinetic energy at an instant when the string makes an angle of 50 with the vertical?
 a. 21 J
  b. 15 J
  c. 28 J
  d. 36 J
  e. 23 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

trampas

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

b


mp14

  • Member
  • Posts: 534
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Micrographs of nerve cells taken with different types of light microscopes. Micrographs of nerve cells taken with different types of light microscopes.
The Sun is the nearest star to Earth. The Sun is the nearest star to Earth.
Structure of a Schwarzschild (Nonrotating) Black Hole Structure of a Schwarzschild (Nonrotating) Black Hole
Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr
Testing the corneal light reflex Testing the corneal light reflex
Black female Vs. Gray male Black female Vs. Gray male
Video: Pores and Ion Channels

For a complete list of videos, visit our video library