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

Author Question: Recall that an up quark (u) has a charge of +2/3 and a down quark (d) has a charge of -1/3. Which of ... (Read 282 times)

kaid0807

  • Hero Member
  • *****
  • Posts: 515
on: Jul 27, 2018
Recall that an up quark (u) has a charge of +2/3 and a down quark (d) has a charge of -1/3. Which of the following quark compositions describes a proton?
 
  A) uuu
  B) uud
  C) udd
  D) uuudd

Question 2

The first multicellular organism appears around
 
  A) 542 million years ago
  B) 1.2 billion years ago
  C) 65 million years ago
  D) 3.5 billion years ago


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jasonq

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


kaid0807

  • Member
  • Posts: 515
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

cassie_ragen

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

How a catalyst circumvents unfavorable charge development during cleavage of an amide How a catalyst circumvents unfavorable charge development during cleavage of an amide
Measuring Electrical Charge Measuring Electrical Charge
In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on
The charge for telephone calls T is partly constant and partly varies with the number N of ... The charge for telephone calls T is partly constant and partly varies with the number N of ...
In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ... In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ...
Storm water charge Storm water charge
Video: Energy inputs and release in glycolysis Animation

For a complete list of videos, visit our video library