« previous next »

Author Question: The mass of a neutron is ________ the combined mass of a proton and an electron. A) less than B) ... (Read 40 times)

MGLQZ

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
The mass of a neutron is ________ the combined mass of a proton and an electron.
 
  A) less than
  B) equal to
  C) more than

Question 2

A roentgen (R) is
 
  A) 10-2 J/kg.
  B) 3.70  1010 decays/s in radium.
  C) the SI unit of radioactivity ( = 1 decay/s).
  D) the SI unit of absorbed dose = 1 J/kg = 100 rad.
  E) a dosage of 2.58  10-4 C/kg.


TheDev123

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Mass Loss from a Supermassive Star Mass Loss from a Supermassive Star
Model of a Neutron Star’s Interior Model of a Neutron Star’s Interior
A color-enhanced scanning electron micrograph of a neuron cell body (grey) studded with terminal ... A color-enhanced scanning electron micrograph of a neuron cell body (grey) studded with terminal ...
Draw the electron dot formula for the perchlorate ion, ClO4-. How many nonbondin Draw the electron dot formula for the perchlorate ion, ClO4-. How many nonbondin
Which of the following is the electron dot formula for an atom of strontium? Which of the following is the electron dot formula for an atom of strontium?
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Video: Epinephrine/NE (heart rate, altered blood flow, glycogenolysis & bronchodilation)

For a complete list of videos, visit our video library