Author Question: In beta minus decay, the number of neutrons in the nucleus A) is decreased by 1. B) is ... (Read 23 times)

abarnes

  • Hero Member
  • *****
  • Posts: 556
In beta minus decay, the number of neutrons in the nucleus
 
  A)
 
  is decreased by 1.
  B)
 
  is decreased by 2.
  C)
 
  is increased by 1.
  D)
 
  is increased by 2.
  E)
 
  remains unchanged.

Question 2

A 2.00-kg block of aluminum at 50.0 C is dropped into 5.00 kg of water at 20.0 C. What is the change in entropy during the approach to equilibrium, assuming no heat is exchanged with the environment?
 
  The specific heat of aluminum is 0.22 cal/(gK).
  A)
 
  8.08 J/K
  B)
 
  10.1 J/K
  C)
 
  3.25  10-2 J/K
  D)
 
  3.80  10-3 J/K
  E)
 
  2.41  10-3 J/K



rachel

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

For a complete list of videos, visit our video library