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Advocard [28]
4 years ago
7

Scientists are concerned about the release of methane from the arctic because _______. a. as a greenhouse gas methane is 20 time

s more potent than carbon dioxide b. the mass of the arctic’s methane is comparable to that of the Earth’s coal beds c. global warming appears to be accelerating its release d. all of the above
Physics
2 answers:
sashaice [31]4 years ago
7 0
D: All of the above

I know methane is deadly and global warming is accelerating.
Zielflug [23.3K]4 years ago
7 0

Answer: d. all of the above

Methane is a powerful greenhouse gas that contributes to the phenomena of global warming. One mole of methane is 10 times more powerful than one mole of CO₂. It is a dominant greenhouse gas. In Artic region the methane is released from the sea bed and the permafrost soil.  The methane is released as natural gas reserve from these sources as a outcome of the process of methanogeneisis. It involves the partial or uncomplete degradation of dead remains of animals and plants and rapid heating and thawing conditions.

The gas releases in the atmosphere because of all the four options.


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Cross product and its properties
bearhunter [10]
  • The length of the cross product of two vectors
  • The scalar triple product of the vectors a, b, and c
  • The volume of the parallelepiped determined by the vectors a, b, and c is the magnitude of their scalar triple product.

<u>Explanation</u>:

  • The length of the cross product of two vectors is | a \times b | = |a| |b| sin θ
  • The length of the cross product of two vectors is equal to the area of the parallelogram determined by the two vectors (see figure below).
  • Anticommutativity:

                                      | a \times b | = - | b \times a |

  • Multiplication by scalars:

                                (ca) \times b = c (a \times b) = a \times (cb)

  • Distributivity:  

                                  a \times (b + c) = (a \times b) + (a \times c)

  • The scalar triple product of the vectors a, b, and c:

                                      a . (b \times c) = (a \times b) . c

  • The magnitude of the scalar triple product is the volume of the parallelepiped of the vectors a, b, and c.  
  • The vector triple product of the vectors a, b, and c is given as

                                 a \times (b \times c) = (a.c) b - (a.b) \timesc

4 0
4 years ago
What word means to move from one place to another
sp2606 [1]
Transition maybe i think
6 0
3 years ago
Read 2 more answers
Horace has invented a unique pair of reading glasses that have two small light bulbs at the bottom wired in series, so that he c
ElenaW [278]

Answer:

The current drawn by Horace’s reading glasses is 0.8 A.

Explanation:  

Given that,

Resistance of each bulb, R = 2 ohms

Voltage of the system, V = 3.2 volts

These two bulbs are connected in series. The equivalent resistance will be 2 ohms +2 ohms = 4 ohms

Let I is the current drawn by Horace’s reading glasses. Using Ohm's law to find it such that :

V=IR\\\\I=\dfrac{V}{R}\\\\I=\dfrac{3.2}{4}\\\\I=0.8\ A

So, the current drawn by Horace’s reading glasses is 0.8 A.

3 0
4 years ago
Jerry is pushing a 50-kg box across a moth floor with an acceleration of 0.6 m/s2. What force is he applying to the box? *
vagabundo [1.1K]

Answer:

<h2>30 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 50 × 0.6

We have the final answer as

<h3>30 N</h3>

Hope this helps you

5 0
3 years ago
Need help pls again fast
Ilia_Sergeevich [38]
Pressure I really don’t know it’s worth a shot
8 0
3 years ago
Read 2 more answers
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