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

Author Question: A uranium nucleus (mass 238 units) at rest decays into a helium nucleus (mass 4.0 units) and a ... (Read 318 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
on: Jul 28, 2018
A uranium nucleus (mass 238 units) at rest decays into a helium nucleus (mass 4.0 units) and a thorium nucleus (mass 234 units). If the speed of the helium nucleus is 1.8  106 m/s, what is the speed of the thorium nucleus?
 a. 1.0  104 m/s
  c. 3.6  104 m/s
  b. 3.1  104 m/s
  d. 4.1  104 m/s

Question 2

An uncharged conductor is supported by an insulating stand. I pass a positively charged rod near the left end of the conductor, but do not touch it. The right end of the conductor will be:
 a. neutral.
  c. attracted. b. positive.
  d. negative.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

moormoney

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


PhilipSeeMore

  • Member
  • Posts: 561
Reply 2 on: Jul 28, 2018
Gracias!

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

The Nucleus Is Enclosed by a Double Membrane The Nucleus Is Enclosed by a Double Membrane
An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution
Post–Main-Sequence Evolution of Low-Mass Stars Post–Main-Sequence Evolution of Low-Mass Stars
Find the final amount if the initial amount is 400 units. Find the final amount if the initial amount is 400 units.
The DNA from one chromosome has a mass of ~20 billion Daltons The DNA from one chromosome has a mass of ~20 billion Daltons
The mole fraction of oxygen in dry air near sea level is 0.20948, where the molar mass of ... The mole fraction of oxygen in dry air near sea level is 0.20948, where the molar mass of ...
Video: Factors that affect conduction rates (myelination, axon diameter & temperature)

For a complete list of videos, visit our video library