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3 years ago

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When organic polymers joined together on early earth, they formed ______? Protons Protobionts Monomers Plankton

2 answers:

In-s [12.5K]3 years ago

8 0

Answer: Protobionts

When organic polymers joined together on early earth, they form protobionts. Protobionts are aggregates of organic molecules which are surrounded by a membrane, these organic molecules which are aggregated by abiotic or non-living factors which were available on early earth. They are considered as precursors of prokaryotic cells.

Sidana [21]3 years ago

4 0

I think the answer would be protons

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A projectile is fired with an initial velocity of 450 feet per second at an angle of 70° with the horizontal.

pav-90 [236]

<h2>After 26.28 seconds projectile returns 26.28 seconds.</h2>

Explanation:

Initial velocity = 450 ft/s = 137.16 m/s

Angle, θ = 70°

Consider the vertical motion of projectile,

When the projectile return to the ground we have

Displacement, s = 0 m

Acceleration, a = -9.81 m/s²

Initial velocity, u = 137.16 x sin70 = 128.89 m/s

Substituting in s = ut + 0.5 at²

s = ut + 0.5 at²

0 = 128.89 x t + 0.5 x (-9.81) x t²

t² - 26.28 t = 0

t ( t- 26.28) = 0

t = 0 s or t = 26.28 s

After 26.28 seconds projectile returns 26.28 seconds.

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Marysya12 [62]

Answer:

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Explanation:

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now formula for most probable velocity

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plugging the values we get

$v_{mp}= \sqrt{\frac{2\8.314\times270}{48} }$

$v_{mp}=305.83 m/s$

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