1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
allochka39001 [22]
3 years ago
12

Radon has a half-life of 56s. After what time will it's activity be reduced to (a) 90% (b) 50% (c) 10% of it's initial value​

Physics
1 answer:
guapka [62]3 years ago
6 0

Answer:

A) 11.2 s

B) is 56 s

C) 170.8 s

You might be interested in
What type of epithelial tissues is in the liver
snow_lady [41]

The glandular epithelial tissues make up the liver.

4 0
3 years ago
Read 2 more answers
The left side of the lever was forced down 10 inches in order to raise the rock 7 inches. The ideal mechanical advantage is
Yanka [14]

Answer:

1.42

Explanation:

<em> got it right on my homework </em>

6 0
2 years ago
What does convection mean
Sladkaya [172]
Convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat
4 0
3 years ago
What are the two roles of bacteria in the nitrogen cycle?
Arisa [49]

Answer:

1. Where they multiply and stimulate formation of root nodules.

2. Enlargements of plant cells and bacteria in intimate association.

4 0
3 years ago
Alex pushes on a 2.0 kg book, resulting in a net force of 6.0 N on the book.
Yakvenalex [24]

Answer:

<h2>3.0 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a  = \frac{f}{m}  \\

From the question we have

a =  \frac{6}{2}  \\

We have the final answer as

<h3>3.0 m/s²</h3>

Hope this helps you

4 0
3 years ago
Other questions:
  • If an object starting from rest and position d o = 0 attains a velocity of 20 m/s at d = 50 m, calculate the acceleration requir
    9·1 answer
  • Write the word form for 3,152,308,726 what is the value of the underlined digit
    7·2 answers
  • Describe and contrast inversion and eversion?
    12·1 answer
  • Which best describes most covalent compounds?<br> O soft<br> O brittle<br> 3<br> O cold<br> O warm
    11·1 answer
  • What part of a thunderstorm kills the most people each year?
    15·2 answers
  • A police car waits in hiding slightly off the highway. A speeding car is spotted by the police car traveling at speed s = 27.6 m
    13·1 answer
  • What happens to the atoms in a star as it goes through its life?
    12·2 answers
  • Constants A capacitor is connected across an ac source that has voltage amplitude 59 0 V and frequency 77 0 Hz Part C What is th
    15·1 answer
  • what will be the acceleration due to gravity at up planet whose mass is 8 times the mass of the earth and whose radius is twice
    12·1 answer
  • Explain two ways of magnetising an object​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!