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
Vsevolod [243]
3 years ago
9

Scientists find the same type of index fossil in two different locations on Earth. What can they conclude from this discovery?

Physics
2 answers:
vodka [1.7K]3 years ago
7 0
<span>B is the most correct answer. When fossils are found in two different locations but are the same type, we know that they're likely the same age. This is also evidence to show that the Earth was composed of land masses that were more closely joined together during these geologic periods.</span>
Salsk061 [2.6K]3 years ago
4 0

B is the correct answer! They are the same, so it is the same! I had the same question, and knew that I *might* have just helped.

I got the answer right, if you were wondering.

You might be interested in
A body weighing 50 N is placed on a wooden table. How much force is required to set it into motion? Coefficient of friction betw
tigry1 [53]

If the coefficient of static friction is 0.3, then the minimum force required to get it moving is equal in magnitude to the maximum static friction that can hold the body in place.

By Newton's second law,

• the net vertical force is 0, since the body doesn't move up or down, and in particular

∑ <em>F</em> = <em>n</em> - <em>mg</em> = <em>n</em> - 50 N = 0   ==>   <em>n</em> = 50 N

where <em>n</em> is the magnitude of the normal force; and

• the net horizontal force is also 0, since static friction keeps the body from moving, with

∑ <em>F</em> = <em>F'</em> - <em>f</em> = <em>F'</em> - <em>µn</em> = <em>F'</em> - 0.3 (50 N) = 0   ==>   <em>F'</em> = 15 N

where <em>F'</em> is the magnitude of the applied force, <em>f</em> is the magnitude of static friction, and <em>µ</em> is the friction coefficient.

4 0
3 years ago
Hello please help i’ll give brainliest
andriy [413]

Answer:

It should be (A few centimeters per year) About three to five centimeters

5 0
3 years ago
an object of mass 1 g is hung from a spring and set in oscillatory motion .At t=0 the displacement is 43.75cm and the accelerati
charle [14.2K]

The spring constant is 4.0\cdot 10^{-5} N/m

Explanation:

For an object in a simple harmonic motion, the acceleration of the object is related to the displacement by

a=-\omega^2 x

where

a is the acceleration

\omega is the angular frequency

x is the displacement

The angular frequency is defined as

\omega=\sqrt{\frac{k}{m}}

where

k is the spring constant

m is the mass

Substituting the second equation into the first one, we get

a=-\frac{k}{m}x

In this problem we have

m = 1 g = 0.001 kg

And at t=0,

x = 43.75 cm

a = -1.754 cm/s

Therefore, we can re-arrange the equation above to find the spring constant:

k=-\frac{ma}{x}=-\frac{(0.001)(-1.754)}{43.75}=4.0\cdot 10^{-5} N/m

#LearnwithBrainly

6 0
3 years ago
It is known that the population mean for the verbal section of the SAT is 500 with a standard deviation of 100. In 2006, a sampl
kvasek [131]

Answer

given,

SAT is 500 with a standard deviation of 100.

a sample of 400 students whose family income was between $70,000 and $80,000 had an average verbal SAT score of 511.

sample mean = \dfrac{standard\ deviation}{\sqrt{n}}

                      = \dfrac{100}{\sqrt{400}}

                      = 5

95% confidence level is achieved within +/- 1.960 standard deviations.

1.960 standard deviations  x  5 is equal to +/- 9.8

confidence interval = 511 - 9.8   ---  511 + 9.8

                                = 501.2-----520.8

4 0
3 years ago
If the kinetic energy of a particle is doubled, by what factor has its speed increased?
Nady [450]
<span> velocity increases by √3</span>
6 0
4 years ago
Read 2 more answers
Other questions:
  • While skiing, Sam flies down a hill and hits a jump. He has a mass of 75 kg, and he leaves the jump at 18 m/s. What is his momen
    11·2 answers
  • Does orbital direction of a planet affect its synodic period as seen from earth?
    11·1 answer
  • A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, causing it to move to the left w
    8·1 answer
  • Which term describes atoms with different atomic masses due to varying numbers of neutrons? (Points : 3)
    15·2 answers
  • What type of power plant used heat from underground to make electricity
    15·1 answer
  • A small block with mass 0.0350kg slides in a vertical circle of radius 0.525m on the inside of a circular track. During one of t
    7·1 answer
  • A force of 10,000 N is applied to a stationary wall. How much work is performed?
    9·1 answer
  • In a population of seals, most of the seals have similar coloring. However, one seal has albinism. This seal is white and is alm
    5·2 answers
  • When is wor sai to done against the force of gravity?
    9·1 answer
  • Which type of circuit would be best to use for lights used for decorations? Question 1 options: Series circuit. One bulb could g
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!