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
Thepotemich [5.8K]
3 years ago
12

4

Physics
1 answer:
inna [77]3 years ago
8 0

Answer:

5g/cm

Explanation:

denisty=mass/volume

100/20

5g/cm

You might be interested in
Who developed radiometric dating? What age did he assign to the oldest rocks?
Mekhanik [1.2K]
Ernest Rutherford
don't know the age sorry

5 0
3 years ago
An electronic charge can be transmitted through?​
DedPeter [7]

Answer:

An electronic charge can be transmitted through the human body, water and metals.

6 0
4 years ago
Four of the wavelengths of the Balmer series occur in the visible spectrum (656 nm, 486 nm, 434 nm, and 410 nm). In which region
djyliett [7]

Answer: radio waves, microwaves, infrared waves.

Explanation:

Electromagnetic spectrum increases in wavelength and decreases with frequency in the following order

Gamma ray, X ray, Ultraviolet rays, Visible light, Infrared rays, Radio waves.

Since 397nm is greater than the value of visible spectrum, this shows that radio waves, microwaves and infrared wave falls in the spectrums of the wavelength value.

4 0
3 years ago
A sample contains 16 g of a radioactive isotope. how much radioactive
mafiozo [28]

After one half-life, 8 g of radioactive isotope will remain in the sample.

<h3>What is radioactivity?</h3>

The act of producing radiation spontaneously is known as radioactivity. This is accomplished by an unstable atomic nucleus that want to give up some energy in order to move to a more stable form.

The following formula is used to compute the number of half lives elapsed:

\rm N=\frac{N_0}{2^n} \\\\ N=\frac{16}{2} \\\\ N= 8 \ gram

Hence,8 gram of radioactive isotope remains in the sample after 1 half-life.

To learn more about the radioactivity, refer  to the link;

brainly.com/question/1770619

#SPJ1

7 0
2 years ago
Read 2 more answers
An electrically neutral atom is an atom which
Studentka2010 [4]
The answer is to the question is c
7 0
4 years ago
Other questions:
  • Predict what the MASS would be of something exerting a force of 45N on a spring scale. EXPLAIN how you got
    15·1 answer
  • Temperature is inversely related to the average kinetic energy of a gas.<br> a. True<br> b. False
    15·1 answer
  • Help!?
    8·2 answers
  • For a research project, a student needs a solenoid that produces an interior magnetic field of 0.0400 T. She decides to use a cu
    11·1 answer
  • I need help in this question please ☹️
    14·1 answer
  • Convert 1.4×10^9km^3 into cubic meters
    8·2 answers
  • An archer defending a castle is on a 15.5 m high wall. He shoots an arrow straight down at 22.8 m/s. How much time does it take
    10·1 answer
  • Which of the following statements correctly describes the relationship between frequency and pitch?
    5·1 answer
  • Length of table is 1.0m,1.00m and 1.000m.Which one is more accurate?​
    5·1 answer
  • 1. Which description defines pseudoscience?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!