1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ehidna [41]
3 years ago
14

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

Physics
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
You might be interested in
A hockey puck is sliding across a frozen pond with an initial speed of 9.5 m/s. It comes to rest after sliding a distance of 37.
Bond [772]

Answer:

<h3>The coefficient of kinetic friction between the puck and the ice is \mu _{k} = 0.12</h3>

Explanation:

Given :

Initial speed  v_{o} = 9.5 \frac{m}{s}

Displacement x = 37.4 m

From the kinematics equation,

  v^{2} - v^{2} _{o}  = 2ax

Where v^{2}   = final velocity, in our example it is zero (v =0), a = acceleration.

   a =- \frac{90.25}{ 2 \times 37.4}

   a =- 1.21 \frac{m}{s^{2} }

From the formula of friction,

  F =- \mu _{k } N

Minus sign represent friction is oppose the motion

Where N = mg ( normal reaction force )

 ma = -\mu _{k}  m g                                                  ( ∵ g = 9.8 \frac{m}{s^{2} } )

So coefficient of friction,

 \mu_{k} = \frac{1.21}{9.8}

 \mu_{k} = 0.12

Therefore, the coefficient of kinetic friction between the puck and the ice is  \mu _{k} = 0.12 .

4 0
3 years ago
What kind of gas cloud is most likely to give birth to stars? what kind of gas cloud is most likely to give birth to stars? a co
navik [9.2K]
Hello! 

The kind of gas cloud that is most likely to give birth to stars is a cold, dense gas cloud.

Stars are formed in giant molecular clouds, called "star nurseries". These are regions with molecular Hydrogen, Helium, and little amounts of other elements. These are cold and dense regions, and the gas cloud collapses, forming a protostar. The protostar gradually heats, powering nuclear reactions in its center, which increases the temperature even more and giving birth to a star. 

Have a nice day!
7 0
3 years ago
A cetain car weighs 25,000 N. Calculate the mass of the car.
Studentka2010 [4]

Answer:2500kg

Explanation:

Weight of car(w)=25000N

Acceleration due to gravity approximately(g) 10m/s^2

Mass=w/g

Mass=25000/10

Mass=2500kg

3 0
4 years ago
This is the solid outermost layer of the Earth, including the crust and upper-mantle.
mr_godi [17]
Together the crust and upper mantle are called the lithosphere
7 0
4 years ago
Read 2 more answers
A group of atoms with aligned magnetic poles are known as which of the following?
cestrela7 [59]
A magnetic domain is a group of atoms aligns with magnetic poles. Domains are usually <span>light and dark stripes visible within each grain.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Two concentric conducting spherical shells produce a radially outward electric field of magnitude49,000 N/C at a point 4.10 m fr
    9·1 answer
  • Which kind of light is used to carry information through optical fibers?
    12·1 answer
  • Number of waves that pass a given point in one second
    11·1 answer
  • A baseball, which has a mass of 0.685 kg., is moving with a velocity of 38.0 m/s when it contacts the baseball bat duringwhich t
    15·2 answers
  • What does a hurricane hunter do
    6·1 answer
  • If your parents were going through a divorce and you needed to talk to someone, who would be the best professional to see?Clinic
    9·2 answers
  • Now assume that Eq. 6-14 gives the magnitude of the air drag force on the typical 20 kg stone, which presents to the wind a vert
    8·2 answers
  • A car accelerates uniformly from rest to a speed of 76.8 mi/h in 7.62 s. Find the constant acceleration of the car. Answer in un
    15·1 answer
  • A 20 g ball of clay traveling east at 4.5 m/s collides with a 45 g ball of clay traveling north at 2.0 m/s. You may want to revi
    14·1 answer
  • A circus performer walked up and to the right for a total displacement of 10\,\text m10m10, start text, m, end text along a diag
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!