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Hoochie [10]
3 years ago
11

Science, who ever answers this will get a brainlest

Physics
2 answers:
Ganezh [65]3 years ago
8 0

answer:

a.fossils of the same plants and animals are found on widely spread continents

explanation:

four fossil examples include; the mesosaurus, cynognathus, lystrosaurus, and glossopteris.

good luck :)

i hope this helps

have a nice day !!

musickatia [10]3 years ago
7 0
The first one(about the spread fossils).
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Two high-current transmission lines carry currents of 29.0 A and 78.0 A in the same direction and are suspended parallel to each
jarptica [38.1K]

Answer with Explanation:

We are given that

I_1=29 A

I_2=78 A

d=38 cm=\frac{38}{100}=0.38 m

1 m=100 cm

a.Length of segment,l=20 m

Magnetic force ,F=\frac{2\mu_0I_1I_2 l}{4\pi d}

\frac{\mu_0}{4\pi}=10^{-7}

Substitute the values

F=\frac{10^{-7}\times 29\times 78\times 20}{0.38}=0.0119 N

Hence, the magnetic force exert by each segment on the other=0.0119 N

b.We know that when current carrying in the wires are in same direction then the force will attract to each other.

Hence, the force will be attractive.

4 0
3 years ago
Read 2 more answers
Which of these statements is correct about wood and common salt?
morpeh [17]

Answer: Option (C) is the correct answer.

Explanation:

Minerals are inorganic substances which have certain characteristic shape or structure along with homogeneous chemical composition.

It is not necessary that a mineral should be formed under the ground.

Substances which have carbon atoms in their structure are called organic compounds.  The structure of wood has carbon atoms attached thus, wood is an organic compound.

Therefore, we can conclude that common salt is a mineral because it has a definite crystal structure but wood is not a mineral because it is organic.

7 0
3 years ago
Read 2 more answers
When is evidence considered scientific?
ra1l [238]
When it has been proven by science to be true.
8 0
4 years ago
at a particular instant a hot air balloon is 100m in the air and decending at a constant speed of 2m/s at this exact instant a g
labwork [276]
<h2>She will find the ball at a horizontal distance of 86.4 m from landed location</h2>

Explanation:

Consider the vertical motion of ball

We have equation of motion s = ut + 0.5 at²

        Initial velocity, u = 2 m/s

        Acceleration, a = 9.81 m/s²  

        Displacement, s = 100 m      

     Substituting

                      s = ut + 0.5 at²

                      100 = 2 x t + 0.5 x 9.81 xt²

                      4.905t²  + 2t - 100 = 0

                     t = 4.32 s    or   t = -4.72 s

                    After 4.32 seconds the ball reaches ground.

Now we need to find horizontal distance traveled by ball in 4.32 seconds.

We have equation of motion s = ut + 0.5 at²

        Initial velocity, u = 20 m/s

        Acceleration, a = 0 m/s²  

        Time, t = 4.32 s      

     Substituting

                      s = ut + 0.5 at²

                      s = 20 x 4.32 + 0.5 x 0 x 4.32²

                      s = 86.4 m

She will find the ball at a horizontal distance of 86.4 m from landed location

5 0
4 years ago
Some critics of the Big Five model for personality have proposed __________ as a sixth fundamental personality trait, after clai
VMariaS [17]

Answer:

honest-humility

Explanation:

The Big Five model for personality is a model in psychology that aimed to evaluate the personality of the people with five big treats that could describe the general personality of their persona, most of the critics of that model critized it believed that it was lacking another trait which was Honest-Humility, and how that is involved in the development of the personality of a person.

7 0
4 years ago
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