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
ivann1987 [24]
3 years ago
6

21

Physics
1 answer:
Setler [38]3 years ago
7 0

Answer:

each half life you lose half the amount so the first one gets you to 28g and the 2nd half life gets you to 14gm

Explanation:

You might be interested in
Explain why people have different skin colors?
stiks02 [169]

I think it because of UV rays ultra violet ray which can make their colors different

5 0
3 years ago
A velocity-time graph shows how what changes over time.
Mnenie [13.5K]

Answer:

velocity changes over time.

6 0
2 years ago
Although it shouldn’t have happened, on a dive i fail to watch my spg and run out of air. if my buddy is close by, my best optio
leva [86]

Answer:

B ) Ascend using my buddy alternative air source / make an emergency Ascent

Explanation:

From the description it can be seen his buddy is close by of which he can easily use the alternative air source. Also we can see that he is closer to the water surface than his buddy, of which controlled emergency swimming ascent is highly favourable in this condition.

5 0
3 years ago
Read 2 more answers
Forces normal to a particle's displacement do no work.
snow_tiger [21]

Answer:

Explanation:

The work done is defined as the product of force applied in the direction of displacement and the displacement.

W = F x d x Cosθ

where, F is the force applied, d be the displacement and θ be the angle between the displacement and force.

For the normal forces, the angle between the displacement and the force applied is 90 degree, and the value of Cos 90 is zero, so the work done is zero.

3 0
3 years ago
Where does the energy in an unburned match come from?
choli [55]

A matchstick has a lot of chemical energy stored in it. When the match is struck, it burns and the chemical energy in it produces heat energy and light energy.

5 0
3 years ago
Other questions:
  • Which properties of plastics allow them to be solutions to many complex problems in the world? Check all that apply. A.chemicall
    8·2 answers
  • A wave has a wavelength of 10mm and a frequency of 5 hz what is the speed?
    10·2 answers
  • HELP ASAP! GIVING BRAINLIEST
    10·2 answers
  • Alex rides her bike at 12.0 km/hr for 2.25 hr. what distance has alex traveled?
    7·1 answer
  • IM BEGGING FOR HELP!!! According to the figure above, at what altitude is the atmospheric pressure equal to
    9·1 answer
  • Name the four fundamental fores at work inside an atom. Tell what each one does.​
    9·1 answer
  • An artificial satellite orbits Earth at a speed of 7800 m/s and a height of 200 km above Earth’s surface. The satellite experien
    7·1 answer
  • An iceberg of density 920kg/m^3 floats in seawater of density 1025kg/m^3 with volume of 10^6m^3.What is the total mass of the ic
    13·1 answer
  • Potential energy is the energy an object has due to its:
    13·2 answers
  • URGENT PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST !!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!