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
rusak2 [61]
2 years ago
9

True or false? An organism may play more than one role in a food web

Chemistry
1 answer:
Arte-miy333 [17]2 years ago
4 0

Answer:

True

Explanation:

Your welcome! :) Good luck!

You might be interested in
Explain how you determine the freezing point of a solution that does not have a well-defined transition in the cooling curve.
Sophie [7]

This question is asking for a method for the determination of the freezing point in a solution that does not have a noticeable transition in the cooling curve, which is basically based on a linear fit method.

The first step, would be to understand that when the transition is well-defined as the one on the attached file, we can just identify the temperature by just reading the value on the graph, at the time the slope has a pronounced change. For instance, on the attached, the transition occurs after about 43 seconds and the freezing point will be about 4 °C.

However, when we cannot identify a pronounced change in the slope, it will be necessary to use a linear fit method (such as minimum squares) to figure out the equation for each segmented line having a significantly different slope and then equal them so that we can numerically solve for the intercept.

As an example, imagine two of the segmented lines have the following equations after applying the linear fit method:

y=-3.5 x + 25\\\\y=-0.52 x + 2

First of all, we equal them to find the x-value, in this case the time at which the freezing point takes place:

-3.5 x + 25=-0.52 x + 2\\\\-3.5 x+0.52 x =2-25\\\\x=\frac{-23}{-2.98}=7.72

Next, we plug it in in any of the trendlines to obtain the freezing point as the y-value:

y=-3.5 (7.72) + 25\\\\y = 1.84

This means the freezing point takes place after 7.72 second of cooling and is about 1.84 °C. Now you can replicate it for any not well-defined cooling curve.

Learn more:

  • brainly.com/question/22818252
  • brainly.com/question/9680530

7 0
3 years ago
Naoki's bicycle has a mass of 10 kg. If Naoki sits on her bicycle and starts pedaling with a force of 168 N, causing an accelera
White raven [17]

Answer:

50 kg

Explanation:

Data:

Mass of bicycle = 10 kg

                       F = 168 N

                       a = 2.8 m/s²

Calculation:

                     F = ma     Divide each side by m, Then

                 m = F/a

                     = 168/2.8

                      = 60 kg

                 m = mass of bicycle + Naoki's mass. Then

                60 = 10 + Naoki's mass     Subtract 10 from each side

Naoki's mass = 50 kg

3 0
3 years ago
Which of the following is an
eimsori [14]

Answer:

2 and 4

Explanation:

The rest of the changes are chemical. 1 has a chemical reaction happen which makes light sticks glow. 3 is because browning the meat actually causes some new compounds to form and cause caramelization.

For 2, the oxygen is simply heating up and expanding which pops the balloon. 4 is just a phase change of water vapor to liquid water.

5 0
3 years ago
Please help!! What is this
ehidna [41]

Answer: It's a redox reaction

Explanation:

6 0
3 years ago
3.01 × 1023 molecules H2O
grandymaker [24]
3079.23 is what you get when you multiply the answers.
6 0
3 years ago
Other questions:
  • When amino acids polymerize to make a protein, which of the following is produced as a byproduct?
    5·2 answers
  • Calculate the molar mass of CH4 gas at STP when 5.46Lof the gas weighs 4g??​
    6·1 answer
  • How many mL of 0.506 M HClare needed to dissolve 9.85 g of BaCO3?
    13·1 answer
  • Which of the following parts of Dalton’s atomic theory was incorrect? Elements cannot turn into different elements in chemical r
    8·1 answer
  • Please help if you can help me, you can have all my points and be brainlest!
    10·1 answer
  • How are weathering and erosion the same?
    9·1 answer
  • What is the current in 160V current if the resistance is 20
    12·1 answer
  • What is the golgi complex nickname
    8·2 answers
  • A sample of nitrogen gas occupies a volume of 1.40L at 297K with a pressure of 776mmHg. The volume increases to 2.70L and the te
    9·1 answer
  • How does the altitude of the Sun change throughout the year in Reno, NV?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!