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
4vir4ik [10]
3 years ago
12

What is a half-life?

Physics
2 answers:
Serggg [28]3 years ago
5 0

Answer:

option D is correct

Explanation:

miskamm [114]3 years ago
4 0

Answer: “ D ”

the amount of time it takes for half of a radioactive isotope sample to decay

You might be interested in
A constant magnetic flux through a closed loop of wire induces an emf in that loop. True or false?
miskamm [114]

Answer: False

Explanation: In order to explain this problem we have to use the Faraday law, which say

dФm/dt=-ε  it means that the variation of the magnetic field flux with time is equal to the emf ( electromotive force). In our case the magnetic flux is constant then there is not a emf induced in a wire closed loop.

6 0
3 years ago
What property of light waves does the michelson-morley interferometer directly demonstrate?
yan [13]
The wave nature of light, due to the experiment having bright and dark bands corresponding to places where you have constructive and destructive interference.
8 0
3 years ago
Calculate the speed of a car that has traveled 300 miles in 6 hours.
PilotLPTM [1.2K]
300 miles / 6 hours = 50 miles per hour
5 0
3 years ago
Which of the following exhibit the Tyndall Effect?
posledela

Answer:

Probably all but (a)

The Tyndall Effect is caused by dispersion of the incident light by the individual molecules in the liquid.

Salt water and a foggy night will cause dispersion of the incident light.

A soda drink may also cause this dispersion, but and not sure.

8 0
2 years ago
What is the name of Newton's first law of motion? A. law of inertia B. law of acceleration C. law of objects at rest D. law of o
givi [52]
The answer is a.......
3 0
3 years ago
Read 2 more answers
Other questions:
  • I need help on question 5
    12·1 answer
  • If you place a balloon in the freezer, it will __________.
    8·2 answers
  • 5. There was less work done. Which of the statements describes how this is possible? (2 points) There was less force applied or
    13·2 answers
  • A truck is traveling 20m/s accelerates 3 m/s^2 for 4 seconds how far did it travel while it was accelerating. Using guess method
    12·1 answer
  • What does a star color tell you about the amount of energy it emits?
    5·2 answers
  • A piece of hot copper of mass 4.00 kg has it's temperature decrease by 36.90 ºC when it is placed in a body of water of unknown
    6·1 answer
  • A mass m = 75 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 19.2 m and finally
    8·1 answer
  • How many neutrons does an element have of its atomic number is 50 and its mass number is 156?
    8·1 answer
  • Elements of Music<br>Timbre<br>Dynamics<br>Rhythm<br>Form<br>Texture<br>Harmony<br>Style​
    6·1 answer
  • Can someone please answer this, ill give you brainliest Would be very appreciated.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!