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Lina20 [59]
3 years ago
13

WHY WAS EARTH AND OTHER PLANETS NOT SOLID WHEN THEY FORMED DURING THE PRECAMBRIAN APPROX 4600 MILLION YEARS AGO?

Biology
1 answer:
GalinKa [24]3 years ago
6 0
First of all chill Second the read your text book
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A small child gives a plastic frog a big push at the bottom of a slippery 2.0 meter long, 1.0 meter high ramp, starting it with
lesya692 [45]
First, let's find the angle of inclination using the tangent function.

sin θ = opposite/hypotenuse = 1 m/2 m
θ = 30°

Assuming the ramp is frictionless, the force balance is:
F = mgsinθ = ma
Cancelling out m,
a = gsinθ = (9.81 m/s²)(sin 30°) = 4.905 m/s²

Using the equation for rectilinear motion at constant acceleration,
x = v₀t + 0.5at²
2 m = (6 m/s)(t) + 0.5(4.905 m/s²)(t²)
Solving for tm
t = 0.297 seconds

Using the equation for acceleration:
a = (v - v₀)/t
4.905 m/s² = (v - 6 m/s)/0.297 s
Solving for v,
v = 7.46 m/s
8 0
2 years ago
Which of the following structures is NOT found in some prokaryotic cells?
WARRIOR [948]

The answer would be:

Cilium

<u>Here is more about the structures of prokaryotic cells:</u>

Axial filament is a bundle of flagella that are wrapped around the cell's body.

Flagellum is what the prokaryotic cell has that is whip-like in structure. It helps with the motility of the cell.

Pilus is a hair-like structure that are found on the surface of prokaryotic cells. They help the cell attach itself to surfaces.

Peritrichous flagella are several flagella that can be found all over some prokaryotic cells.

7 0
2 years ago
The dissolved sugars produces in the leaves of a maple tree move to the trees roots through the??
Whitepunk [10]

The dissolved sugars produced in the leaves of a maple tree move to the roots through the<em><u> phloem</u></em>. It is a tissue that transports nutrients to where it is needed

Hope it helps:)

3 0
3 years ago
Read 2 more answers
When a rock falls from outer space all the way to the ground it is called a?
zysi [14]

when a rock falls from outer space all the way to the ground it is called a meteorite.

3 0
2 years ago
Social cognitive theory proposes that changing a behavior is a function of individual characteristics. True or False
sertanlavr [38]

Answer:

The answer is: False.

Explanation:

Social cognitive theory stands that portions of an individual's knowledge acquisition can be related to <em>observing others within the context of social interactions. </em>

When people observe a model performing a behaviour and the consequences of that behaviour, they remember the sequence of events and <em>use this information to guide subsequent behaviors</em>.

The theory says that people do not leatn new behaviours solely by trrying them and either succeding or failing, but upon the replication of the action of others.

I hope it works!

8 0
3 years ago
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