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tresset_1 [31]
3 years ago
13

A country is deciding what to do about pollution given off by power plants.

Physics
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

The correct option is B

B) Scientists can measure how much pollution is given off.

Explanation:

A) To determine what kind of plants do people want, a polling or a survey is carried out. It is not the job of a scientist to carry that out.

B) Scientist have derived various techniques to measure different kinds of pollution. For example, air pollution can be derived from the Air Quality Index, which measure the quality of the air. The higher the value of Air Quality Index, more is the pollution.

C) Scientists are not allowed to pass any laws regarding pollution. Any kind of laws, including those related to pollution are passed by the Congress.

D) Most of the powerplants in US are owned by private business, while some are under control of the government.

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Maya made this picture to represent a chemical reaction:
Natalka [10]

The statement that best explains the type of chemical reaction represented by Maya's picture is that it is neither a synthesis reaction nor a decomposition reaction because two reactants form two products. That is option B.

<h3>What is a chemical reaction?</h3>

A chemical reaction is the combination of two elements to yield a new product through the formation of bonds.

A chemical reaction is said to be a synthesis reaction when when two different atoms or molecules interact to form a different molecule or compound.

A chemical reaction is said to be a decomposition reaction when one reactant breaks down into two or more products.

Therefore, from the picture, the chemical reaction is neither a synthesis reaction nor a decomposition reaction because two reactants form two products.

Learn more about chemical reaction here:

brainly.com/question/16416932

#SPJ1

5 0
2 years ago
1) A force of 20 Newton acts on a bar having a cross sectional area of 0.8m^2 and length 10cm.calculate the stress developed in
Elanso [62]

Answer:25N/M^2

Explanation:

Force=20N Area=0.8M^2

Stress=force/area

Stress=20/0.8

Stress=25N/M^2

4 0
4 years ago
How long will it take to go 150km traveling at 50km/hr? step by step please
Zigmanuir [339]
To find out time, you put distance over speed. So you would have to put 150 over 50. You divide 150 by 50 and you would get 3. So your answer is 3 hours.
3 0
3 years ago
In the diagram, R1 = 40.0 ,
Nostrana [21]

Answer:

51 Ω.

Explanation:

We'll begin by calculating the equivalent resistance of R₁ and R₃. This can be obtained as follow:

Resistor 1 (R₁) = 40 Ω

Resistor 3 (R₃) = 70.8 Ω

Equivalent Resistance of R₁ and R₃ (R₁ₙ₃) =?

Since the two resistors are in parallel connection, their equivalent can be obtained as follow:

R₁ₙ₃ = R₁ × R₃ / R₁ + R₃

R₁ₙ₃ = 40 × 70.8 / 40 + 70.8

R₁ₙ₃ = 2832 / 110.8

R₁ₙ₃ = 25.6 Ω

Finally, we shall determine the equivalent resistance of the group. This can be obtained as follow:

Equivalent Resistance of R₁ and R₃ (R₁ₙ₃) = 25.6 Ω

Resistor 2 (R₂) = 25.4 Ω

Equivalent Resistance (Rₑq) =?

Rₑq = R₁ₙ₃ + R₂ (series connection)

Rₑq = 25.6 + 25.4

Rₑq = 51 Ω

Therefore, the equivalent resistance of the group is 51 Ω.

4 0
3 years ago
Which shows the formula for converting from degrees Celsius to degrees Fahrenheit?
LenKa [72]
Its simple, you have to plot in an example, but dont get confused with K, the answer its b

4 0
3 years ago
Read 2 more answers
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