Select all that apply.A longitudinal wave is characterized by _____.
peaks compressions dips rarefactions

Answers

Answer 1
Answer: A longitudinal wave ischaracterized by rarefactions. A longitudinal wave is a wave motion wherein theparticles in the wave medium are displaced parallel to the advancing wave. When motionis detected from the source, the particle next to it vibrates from its rest positionand a progressive change in phase vibration is observed at each particle withinthat wave. The result is that the energy is transported from one region to theother. These combined motions result in the movement of alternating regions of rarefactionin the direction of transport of energy.       
Answer 2
Answer: It's characterized by both compression and rarefaction.

(the compression in front of the waves induces a rarefaction behind the wave)

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Anthony walks to the pizza place for lunch. he walk 1 km east, then 1 km south and then 1 km east again. what distance did he cover? what was his displacement?
To test the quality of a tennis ball, you drop it onto a floor from a height of 4.00m . It rebounds to a height of 2.00 m. If the ball is in contact with the floor for 12.0ms,(a) What is the magnitude of its average acceleration during the contact?(b) is the acceleration up or down?
Which statements about acceleration are true?Check all that apply. A. The symbol for acceleration is . B. For acceleration, you must have a number, a unit, and a direction. C. To calculate acceleration, divide the change in velocity by the change in time. D. The SI units for acceleration are miles per hour per second.

Human impacts on biomes are best characterized by _______

Answers

Answer;

-Interruption of natural biome processes

Explanation;

-Human beings have continuously continued with interference of different biomes and thus bringing various modifications to these biomes. Human activities often affect ecosystems in negative ways because human systems are not closed loop systems. For example; human waste enters other natural ecosystems, where it can cause them to become unbalanced

-If efforts are not enhanced in conserving the natural world, we shall continue experiencing deteriorating weather factors like the global warming. Failure to conserve our biosphere will ultimately hurt the human race, together with organisms in various biomes.

Final answer:

Human impacts on biomes include changes in biodiversity, alterations in ecosystem structure, and climate change. These impacts stem from human activities like deforestation, mining, pollution and the emission of greenhouse gases.

Explanation:

Human impacts on biomes are best characterized by changes in biodiversity, alterations in ecosystem structure, and climate change. The significant increase in human population and activities such as deforestation, mining, and pollution lead to biodiversity loss and habitat destruction. These activities collectively trigger alterations in the ecosystem structure. Additionally, human-induced emissions of greenhouse gases contribute to global climate change, which further disturbs the biomes - the various life zones on Earth. Therefore, the major human impacts on biomes include changes in biodiversity, ecosystem structure alterations, and climate change.

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What are light years actually? answer in brief

Answers

A light year is a distance. 
It's the distance that light travels in a year, through vacuum.
The distance is about 5.875 trillion miles. 
The nearest star outside our solar system is about 4.2 light years from us.

Sorry to have rambled on for so long.

88.0 km to m (in physics prefixes )

Answers

We know that,

kilometre = 1000 metre

1000 can be written as 10³ which is kilo.

Given,

88.0km = 88.0×1000

= 88.0×10³m

Many people work near a source of nuclear radiation to detect the amount of exposure they have to radiation they most likely will use a

Answers

Many people work near a source of nuclear radiation to detect the amount of exposure they have to radiation they most likely will use a Film badge. It  is a personal dosimeter used for monitoring cumulative radiation dose due to ionizing radiation.

The answer is Film Badge

A change in which property of light will have no effect on whether or not the photoelectric effect occurs??? Frequently energy intensity and wavelength

Answers

The intensity of the light has no connection with the photoelectric effect.

That's what was so baffling about it before the particle nature of light
was suspected ... a match with a blue flame might stimulate the
photoelectric effect, but a high-power red searchlight couldn't do it.

Answer: intensity

Explanation:

The primary purpose of polarized sunglasses is_____.a.
to block ultraviolet rays.
b.
to block infrared rays.
c.
to block glare from reflections (for example off lakes or roads).
d.
to look cool.

Answers

The primary purpose of polarized sunglasses is to block glare from reflections (for example off lakes or roads). The correct option is C.

What is polarized sunglasses?

Polarized sunglasses are a type of eyewear that has a special filter that blocks intense, reflected light and reduces glare. The filter is oriented vertically, allowing only the vertical component of light waves to pass through, while blocking the horizontal component. This reduces the glare from flat surfaces, such as water or snow, which can be distracting and even dangerous. Polarized sunglasses also enhance contrast and provide clearer vision, making them popular among athletes and outdoor enthusiasts. They are especially useful for activities such as fishing, boating, skiing, and driving. Polarized sunglasses can come in a variety of styles and lens colors, and can be worn in both prescription and non-prescription forms.

eEre in the Question,

Option a, to block ultraviolet rays, is true to some extent. Polarized sunglasses may have UV-blocking properties, but their primary purpose is not to block UV rays.

Option b, to block infrared rays, is not true. Polarized sunglasses are not designed to block infrared rays.

Option d, to look cool, is not true. While some people may wear polarized sunglasses for fashion purposes, their primary purpose is to reduce glare and improve visibility.

Therefore, The correct option is C. to block glare from reflections (for example off lakes or roads).

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I think it is C If this is a question on a test or something try with another source too. I do that all the time.