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

Author Question: Calculate the reaction energy (Q value) for the reaction 7Li + 1H 4He + 4He, given the following ... (Read 80 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
on: Jul 29, 2018
Calculate the reaction energy (Q value) for the reaction 7Li + 1H  4He + 4He, given the following masses:
  7Li: 7.016005 u
  1H: 1.007825 u
  4He: 4.002603 u
  (1 u = 931.5 MeV/c2)
 
  A) 15.37 MeV B) 17.35 MeV C) 17.53 MeV D) 13.57 MeV E) 13.35 MeV

Question 2

A 4.00-kg mass and a 9.00-kg mass are being held at rest against a compressed spring on a frictionless surface.
 
  When the masses are released, the 4.00-kg mass moves to the east with a speed of 2.00 m/s. What is the velocity of the 9.00-kg mass after the masses are released?
  A)
 
  2.00 m/s west
  B)
 
  0.888 m/s west
  C)
 
  0.500 m/s east
  D)
 
  4.50 m/s west
  E)
 
  0.500 m/s west


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Joy Chen

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

B


cdr_15

  • Member
  • Posts: 546
Reply 2 on: Jul 29, 2018
Gracias!

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Activation energy graph Activation energy graph
Attributes of Major Energy Channels According to Traditional Chinese Medicine Attributes of Major Energy Channels According to Traditional Chinese Medicine
Radiative forcing expresses change in energy input over time Radiative forcing expresses change in energy input over time
China has relied on cheap coal to meet its demand for energy China has relied on cheap coal to meet its demand for energy
Ionization energy Ionization energy
Comparing uncontrolled and controlled energy release. Comparing uncontrolled and controlled energy release.
Video: Introduction to filtration - filtrate formation and composition

For a complete list of videos, visit our video library