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sladkih [1.3K]
3 years ago
8

A plane traveled a distance of 4,200 km for 3.5 hours. What was the speed of the plane?

Physics
2 answers:
omeli [17]3 years ago
6 0
1200km per hour hope this helps:)
bija089 [108]3 years ago
3 0

Answer:

1200km per hour

Explanation:

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Which change in an abiotic factor causes coral bleaching? a. increased salinity b. decreased salinity c. decreased turbidity d.
Sedbober [7]

The answer is <u>"d. increased temperature".</u>


At the point when corals are stressed by changes in conditions, for example, temperature, light, or supplements, they remove the symbiotic algae living in their tissues, making them turn totally white. Hotter water temperatures can result in coral bleaching. At the point when water is too warm, corals will oust the algae living in their tissues, making the coral turn totally white. This is known as coral bleaching.  

When a coral blanches, it isn't dead. Corals can endure a bleaching occasion, yet they are under more pressure and are liable to mortality.

7 0
3 years ago
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A projectile is fired at an upward angle of 35.6° from the top of a 208-m-high cliff with a speed of 170-m/s. What will be its s
sdas [7]

Answer:

Final velocity is 181.61 m/s at angle 40.44° below horizontal.

Explanation:

Initial horizontal velocity = 170 cos 35.6 = 138.23 m/s

Final horizontal velocity = 138.23 m/s

Considering vertical motion of projectile:

Initial vertical velocity, u = 170 sin 35.6 = 98.96 m/s

Acceleration, a = -9.81 m/s²

Displacement, s = -208 m

We have v² = u² + 2as

Substituting

             v² = 98.96² + 2 x -9.81 x -208

             v = 117.79 m/s

Final velocity,

            v=\sqrt{138.23^2+117.79^2}=181.61m/s

            \theta =tan^{-1}\left ( \frac{117.79}{138.23}\right )=40.44^0

Final velocity is 181.61 m/s at angle 40.44° below horizontal.

5 0
4 years ago
What would the answer be ?
Marianna [84]
The second one since you’re changing the soil up by adding different fertilisers. This will be you’re independent variable. And you’re dependent variable is your result = the plant height .
Hope this helps :)
4 0
3 years ago
If a star's radiation peaks in the ultraviolet region of the spectrum, you would not be able to see it. true or false.
slega [8]

the answer would be false

hope I helped and goodluck

:)

6 0
3 years ago
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The energy transformation a leaf on a tree undergoes when sunlight shines on it is an example of what?
Damm [24]

Answer:Radiant to chemical

Explanation:

6 0
3 years ago
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