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 84 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
Great answer, keep it coming :)

tanna.moeller

  • Member
  • Posts: 328
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Herniated disk. A herniated disk is a protrusion of the disk’s gelatinous center, called the nucleus Herniated disk. A herniated disk is a protrusion of the disk’s gelatinous center, called the nucleus
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
David Usher - Black Black Heart David Usher - Black Black Heart
Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation. Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation.
Elephant herd drinking at water hole. Botswana Elephant herd drinking at water hole. Botswana
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative ... A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative ...
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library