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

Author Question: A beam of protons is sent through a target and 60 get through. If the target then has its thickness ... (Read 121 times)

Tazate

  • Hero Member
  • *****
  • Posts: 532
on: Jul 29, 2018
A beam of protons is sent through a target and 60 get through. If the target then has its thickness doubled, what percent of the beam would then get through?
 
  A)
 
  20
  B)
 
  36
  C)
 
  40
  D)
 
  60
  E)
 
  80

Question 2

In an electron two-slit experiment, the slits are 15 m apart. If the first diffraction maximum lies at an angle of 5.0  10-7 rad, what is the momentum of the incoming electrons?
 
  A)
 
  4.4  10-23 kgm/s
  B)
 
  2.2  10-23 kgm/s
  C)
 
  11  10-23 kgm/s
  D)
 
  6.6  10-23 kgm/s
  E)
 
  8.8  10-23 kgm/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wshriver

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

E


Tazate

  • Hero Member
  • *****
  • Posts: 532
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


wshriver

  • Sr. Member
  • ****
  • Posts: 318
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

The anterior pituitary is sometimes called the master gland because it secretes many hormones that r The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
External beam radiotherapy. External beam radiotherapy.
Cranial nerves and their target regions. (Sensory nerves are shown in blue; motor nerves, in red.) Cranial nerves and their target regions. (Sensory nerves are shown in blue; motor nerves, in red.)
In 1974 a UC Berkeley group fired an oxygen nucleus at a californium target. Giv In 1974 a UC Berkeley group fired an oxygen nucleus at a californium target. Giv
In 1969 a UC Berkeley group fired a carbon nucleus at a californium target. Give In 1969 a UC Berkeley group fired a carbon nucleus at a californium target. Give
A horizontal, 2.00 m long, 3.00 kg uniform beam that lies along the east-west di A horizontal, 2.00 m long, 3.00 kg uniform beam that lies along the east-west di
Video: Energy sources - types

For a complete list of videos, visit our video library