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

Author Question: Does a radioactive isotope ever lose its radioactivity? A) yes B) no C) sometimes D) ... (Read 40 times)

jhjkgdfhk

  • Hero Member
  • *****
  • Posts: 569
on: Jul 29, 2018
Does a radioactive isotope ever lose its radioactivity?
 
  A) yes
  B) no
  C) sometimes
  D) usually

Question 2

In a two-slit experiment using coherent light, the distance between the slits and the screen is 1.10 m, and the distance between the slits is 0.0400 mm.
 
  If the second order bright fringe is measured to be 4.20 cm from the centerline on the screen, what is the wavelength of light?
  A) 200 nm
  B) 381 nm
  C) 401 nm
  D) 620 nm
  E) 763 nm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

quynhmickitran

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

E


jhjkgdfhk

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jul 29, 2018
Thanks


quynhmickitran

  • Sr. Member
  • ****
  • Posts: 330
Reply #3 on: Jul 29, 2018
Welcome :)


« 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?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

The Calvin Cycle Was Determined by Isotope Labelling Methods The Calvin Cycle Was Determined by Isotope Labelling Methods
(a) Uranium series dating uses the decay chain of radioactive uranium to stable lead. (a) Uranium series dating uses the decay chain of radioactive uranium to stable lead.
Polar ice caps lose mass as surface ice melts Polar ice caps lose mass as surface ice melts
The isotope record The isotope record
RÜFÜS DU SOL - Lose My Head RÜFÜS DU SOL - Lose My Head
Radioactive Decay Radioactive Decay
Video: Metaphase I Animation

For a complete list of videos, visit our video library