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likoan [24]
4 years ago
15

What information did geologist use to divide earths history into intervals?

Physics
2 answers:
zavuch27 [327]4 years ago
7 0
<h3>changes in fossil record</h3>
dangina [55]4 years ago
6 0
Below are the choices that can be found from other sources:

A. change in climate 
<span>B changes in the atmosphere </span>
<span>C changes in the fossil record </span>
<span>D changes in volcanic
</span>
The answer is <span>C. changes in the fossil record

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
</span>
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Which of the following statements about ice melting is true?
Shtirlitz [24]
B.
hope this helps!!!

5 0
3 years ago
Read 2 more answers
Which is a compound machine?<br><br> a broom<br> a screwdriver<br> a slide<br> a pair of scissors
8090 [49]
A pair of scissors .....................................
4 0
3 years ago
Herpetology is the study of what?<br> Birds,<br> Exotic animals, <br> Zoo habitats, Reptiles
Diano4ka-milaya [45]

Answer:

Herpetology is the branch of zoology concerned with reptiles and amphibians.

5 0
3 years ago
Three charges 1.5*10-6, 3*10-6, -3*10-6 are placed at three vertices of an equilateral triangle of side 30cm. Find the net force
gulaghasi [49]

Answer:

F = 0N

Explanation:

The force between two charges is given by

F=k\frac{q_1q_2}{r^2}

where r is the distance between the charges and K is the Coulomb's constant

(k=8-89*10^9Nm^2/C^2)

The force in the first charge is only the sum of the forces due to the other charges. Hence we have

F_T=F_1+F_2=k\frac{q_2q_1}{r^2}+k\frac{q_3q_1}{r^2}

F_T=(8.89*10^9\frac{Nm^2}{C^2})\frac{(3*10^{-6}C)(1.5*10^{-6}C)}{(0.3m)^2}+(8.89*10^9\frac{Nm^2}{C^2})\frac{(-3*10^{-6}C)(1.5*10^{-6}C)}{(0.3m)^2}\\\\F_T=0.445N-0.445N=0N

Ft=0N

Hope this helps!!

5 0
3 years ago
Read 2 more answers
What is the sources of error and suggestion on how to overcome it in the hooke's law experiment?
goblinko [34]
In physics, Hooke's law is written in equation as:

F = kx

It states that the force F exerted on the spring is directly proportional to the displacement x by a constant called spring constant k.

In the laboratory, this is done in an experiment through the apparatus shown in the attached figure. The object experimented here is the spring, and you are to find the spring constant. A known mass of object is attached below the spring. That object carries a force in the form of gravitational pull in terms of weight. When the spring stretches, the displacement is measured with the use of the ruler.

There are a number of sources of error for this experiment. First, the reading from the ruler by the reader may be inaccurate. That's why digital balances are much more reliable because it minimizes human error. Reading the measurement on the ruler is subjective especially when you don't read it on eye level. Second, the force of the object might also be inaccurate if you use an unreliable weighing scale. Lastly, the apparatus might not be properly calibrated.

6 0
3 years ago
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