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3 years ago

The seismic waves that travel through Earth’s interior are _____ waves.

1 answer:

7 0

The seismic waves that travel through Earth’s interior are known as the P waves and the S waves, these seismic waves have differences, first the P waves compress and enlarge the foundations(rocks) as they move through it, while the S waves, shakes the particles of their medium up and down and side-by-side. P waves can travel through solid granite, magma, water or even air, while S waves can only travel through solids, they are unable to travel through fluids. The P waves are the fastest of all known seismic waves, it is the first seismic wave to register on the seismograph, while the S wave is the second one.

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In what water temperature do sharks swimin?

Ad libitum [116K]

Answer:

It depends what type of shark it is

Explanation:

Depending on the species, they can live anywhere from 41 degrees Fahrenheit to 86 degrees Fahrenheit

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3 years ago

How is enthalpy used to predict whether a reaction is endothermic or exothermic?

Radda [10]

Answer:

$329.48 KJ/mol$ heat is released by the combustion of $2 mol$ of methane

Explanation:

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

$2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)$

$\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]$

= $2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]$

$= -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]$

$= -787 KJ/mol+1116.48 KJ/mol$

$=329.48 KJ/mol$

In this question, the enthalpy of formation has positive value and hence the reaction is endothermic in which the heat is released.

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2 years ago

What does it mean when a scientist uses the word theory

Evgen [1.6K]

Answer:

well theory is ranked second highest in certainty in scientific nomenclature. theory dictates it is more certain of a principle than a hypothesis yet not concrete enough to be a law. examples are the theory of evolution versus the law of gravity

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3 years ago

The ________ is an enzyme involved in the breakdown of serotonin, norepinephrine, and dopamine, and its suppression results in i

kenny6666 [7]

Answer:

monoamine oxidase inhibitor

Explanation:

MAO is an intramitochondrial enzyme that is responsible for the breakdown of intracellular dopamine,norepinephrine and dopamine.MOA INHIBITORS is responsible for inhibiting monoamine oxidase as a result there is an increase concentration of monoamines at the synapse.

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2 years ago

Found: A Plant-Eating Spider. Spiders are meat-eaters. Until recently, scientists thought that was true for the roughly 40,000 s

lions [1.4K]

Answer:

Yes, competition is likely to occur

Explanation:

Competition is an ecological interaction between organisms of the same or different species, resulting in the detriment of one of the organisms. Competition is generally caused when organisms in an ecosystem occupies the same niche i.e. they rely on the same ecological resource, which could be food, mate, space etc.

The case described in this question involving a Bagheera kiplingi (jumping spider) and acacia ants will likely result in competition because they both occupy the same habitat and feed on the same food (vegetable plant). The two organisms will have to compete for this limited resource, hence, it is regarded as an INTERSPECIFIC COMPETITION because it involves two different organisms.

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3 years ago