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3 years ago

Which statement best describes longitudinal waves

Physics

1 answer:

Marina CMI [18]3 years ago

3 0

Compression and rarefaction build up longitudinal waves.

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Drosera magnifica is an organism that was first discovered in 2015.

mestny [16]

Answer:

The correct answer is - Plantae.

Explanation:

Drosera m<em>agnifica</em> is discovered in 2015 for the first time and the characteristics this organism's cell shows are -

- permanent vacuoles

- surrounded by cellulose layer

Vacuoles are present in both Plantae and Animalia kingdom of the eukaryotic organism but in animal cells, there are small and numerous vacuoles present and they are not permanent whereas in plant cells vacuoles are present permanently.

The cell of an animal cell has no surrounding layer other than cell membrane while in the plant cell there is a supporting and protecting layer of cellulose cell wall present.

On the basis of the given characteristics, it is confirmed that the Drosera magnifica belongs to Plantae kingdom.

3 0

3 years ago

~~~!Here's the question!~~~

gtnhenbr [62]

The answer would most likely be A since obviously gravity weighs things down which helps the every other masses stay settled in place

6 0

3 years ago

Read 2 more answers

A zebra starts from rest and accelerates at 1.9 m/s how far has a zebra gone in five seconds

Maksim231197 [3]

To that multiply 1.9 by 5 to get 9.5. The zebra has gone 9.5 m.

5 0

3 years ago

A 50-cm-long spring is suspended from the ceiling. A 270 g mass is connected to the end and held at rest with the spring unstret

I am Lyosha [343]

Answer:

The spring constant is 45.94 N/m.

Explanation:

Given that,

Length = 50 cm

Mass = 270 g

Stretching the spring = 24 cm

We need to calculate the spring constant

Using formula of energy

The change in potential energy equal to the change in kinetic energy.

$mgh=\dfrac{1}{2}kx^2$

Put the value into the formula

$270\times10^{-3}\times9.8\times50\times10^{-2}=\dfrac{1}{2}\times k\times(24\times10^{-2})^2$

$k=\dfrac{2\times270\times10^{-3}\times9.8\times50\times10^{-2}}{(24\times10^{-2})^2}$

$k=45.94\ N/m$

Hence, The spring constant is 45.94 N/m.

3 0

3 years ago

Complete the graphic organizer by telling what the advantages and disadvantages of each type of renewable energy are. (Look in p

inysia [295]

Answer:

PRO'S OF SOLAR ENERGY: reduced electricity bills, low maintenance cost, renewable energy source.

CONS OF SOLAR ENERGY: Cost, relies on weather, takes up a lot of space.

PROS OF WIND ENERGY: Clean environment, cost effective, Free

CON'S OF WIND ENERGY: Wind turbines are noisy, strength of wind is not always reliable

PROS OF GEOTHERMAL ENERGY: Save about 30% - 60% on heating and cooling, not weather dependent.

CONS OF GEOTHERMAL ENERGY: Greenhouse emission, high investment cost, requires a lot of land.

PROS OF BIOMASS ENERGY: Reduced dependence on fossil fuels, carbon neutral, waste reduction.

CONS OF BIOMASS ENERGY: Emissions, deforestation. cost.

PROS OF HYDROELECTRIC ENERGY: Good for the environment, reliable, efficient.

CONS OF HYDROELECTRIC ENERGY: Expensive, not always safe, you can't place hydroelectric energy anywhere you want.

***If you found my answer helpful, please give me the brainliest. :) ***

6 0

3 years ago