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
Norma-Jean [14]
1 year ago
8

A student shakes a tube containing small balls to model the movement of particles in a gas. 1

Biology
1 answer:
Stells [14]1 year ago
5 0
The balls move randomly.

Because gas molecules are known for their movement and the above statement says “to model the movement”
You might be interested in
What is another word for "fault" as it relates to earthquakes?
nikitadnepr [17]

Answer:

vu

Explanation:

vtyuyh knjm

3 0
3 years ago
g If a person takes a prescribed dose of 10 milligrams of Valium, the amount of Valium in that person's bloodstream at any time
Elenna [48]

Answer:

a. 8.1 milligrams

b. 40.07 hours

c. 8.859 milligrams

Explanation:

If a person takes a prescribed dose of 10 milligrams of Valium, the amount of Valium in that person's bloodstream at any time can be modeled by

A_{t}=10e^{-0.0173t}

Where A(t) = amount of Valium remaining in the blood after t hours

t = time or duration after the drug is taken

a. we have to calculate the amount of drug remaining in the bloodstream after 12 hours

A_{12}=10e^{-0.0173\times12}

A_{12}=10e^{-0.2076}

                = 10×0.81253

                = 8.1 milligrams

b. In this part we have to calculate the time when A(t) = 5 milligrams

5=10e^{-0.0173\timest}

\frac{5}{10}=e^{-0.0173t}

0.5 = e^{-0.0173t}

Now we take natural log on both the sides of the equation.

ln(0.5) = ln(e^{-0.0173t})

-0.69314 = -0.0173t

t = \frac{0.69314}{0.0173}

t = 40.0658

 ≈ 40.07 hours

c. In this part we have to calculate the rate, by which amount of drug will decay in the bloodstream after 7 hours.

A_{7}=10e^{-0.0173\times7}

A_{7}=10e^{-0.1211}

              = 10×0.8859

              = 8.859 milligrams

6 0
3 years ago
What are two crucial functions of the carbon cycle?
Stolb23 [73]
A. Keeps carbon dioxide from escaping atmosphere
and slows diffusion
B. Prevents bicarbonate formation and slows
photosynthesis
C. Provides fossil fuels and recycles carbon dioxide
D. Prevents carbon dioxide from entering
atmosphere and dissolves fossil fuels










8 0
2 years ago
What is the effect of returning nuclear reactor cooling water back into bodies of water. Select all that apply
kupik [55]
3 increases the temperature so fast it boils fish
6 0
3 years ago
Read 2 more answers
Diatoms are mostly asexual members of the phytoplankton. Diatoms lack any organelles that might have the 9 + 2 pattern. They obt
Brrunno [24]

Answer:

Diatoms are mostly asexual members of the phytoplankton. Diatoms lack any organelles that might have the 9 + 2 pattern. They obtain their nutrition from functional chloroplasts, and each diatom is encased within two porous, glasslike valves. Which question would be most important for one interested in the day-to-day survival of individual diatoms?

C) How do diatoms with their glasslike valves keep from sinking into poorly lit waters?

Explanation:

Diatoms are some of the most important organisms living on earth because of its role on the oxygen production in the planet earth. The question "how do diatoms with their glasslike valves keep from sinking into poorly lit waters?" Because of the way their nutrition is obtained from functional chloroplasts and the way them encased within two porous, glasslike valves.

4 0
3 years ago
Other questions:
  • _____ communicate information in the opposite direction, from the brain and nervous system to muscles and glands.
    8·1 answer
  • How do bangal tigers use camouflage
    12·2 answers
  • What is the name of the continent, name of the largest city, geographic feature.
    10·1 answer
  • What is definition of biotechnology
    6·2 answers
  • 5. Why are index fossils useful in dating rock layers?
    12·1 answer
  • Describe some of the characteristics of living things (not just humans)
    10·1 answer
  • Identify the role of DNA polymerase, Ligase, RNA Polymerase, DNA Helicase
    7·2 answers
  • A patient tells you they have a stomach ache, is that a sign or a symptom?
    9·1 answer
  • Why is cytokinesis an important part of the cell division? how can cytokinesis help us?
    9·1 answer
  • Hello!! <br> What´s Antibiotic
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!