What is the relationship between mutation, natural selection, and adaption

Answers

Answer 1

Answer: Mutation can cause an organism to instantly adapt while natural selection is when adaptations happen slowly, over time and generations.

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10 POINTS!!! Determine the pressure of your book in pascals (Pa). Show your work! (the pressure of the book in psi is 0.03 psi) Also the weight of the book is 3 lbsHInt: 1 Pa = 1 N/m^2 Weight (force) = ma 1 kg = 2.2 lbs 1 inch = 2.54 cm 1m = 100 cm
Which statement describes between a cup if cold water and a cup of boiling water

How and why dose air pressure change with altitude in the atmosphere

Answers

Air pressure changes with altitude because of issues related to gravity molecules have more weight the closer they are to the Earth and more of them move to lower elevations as a result this causes increased pressure because there are more molecules in number and proximity

How are both the genes and the environment determine how tall a person will be?

Answers

well i'm not exactly sure, but i know that you get all of your inherited traits from your parts and you have all the the looks of your parents half and half of each of your parents.

Describe the role of the grass in the food web

Answers

Grass is a producer. It gets its energy from the sun, which i might add is by a process called,"photosynthesis", meaning the grass makes its own food. With this bew energy an animal such as a rabbit comes to eat it, that energy that the grass collected is now the rabbits.

A 75 kg baseball player runs at a velocity of 6 m/s before sliding to a stop at second base. a. What is the kinetic energy of the runner before he begins his slide? b. What is the kinetic energy of the runner once he reaches the base? c. What is the change in the kinetic energy of the runner? d. How much work is done by friction in stopping the runner? e. If the runner slides for 2 m, what is the force of friction that acts upon him?

Answers

Answer:

a. $\displaystyle k_o=1350\ J$

b. $\displaystyle k_1=0\ J$

c. $\Delta k=-1350\ J$

d. $W=-1350\ J$

e. $F=-675\ N$

Explanation:

Work and Kinetic Energy

When an object moves at a certain velocity v0 and changes it to v1, a change in its kinetic energy is achieved:

$\Delta k=k_1-k_0$

Knowing that

$\displaystyle k=(mv^2)/(2)$

We have

$\displaystyle \Delta k=(mv_1^2)/(2)-(mv_0^2)/(2)$

The work done by the force who caused the change of velocity (acceleration) is

$\displaystyle W=(mv_1^2)/(2)-(mv_0^2)/(2)$

If we know the distance x traveled by the object, the work can also be calculated by

$W=F.x$

Being F the force responsible for the change of velocity

The 75 kg baseball player has an initial velocity of 6 m/s, then he slides and stops

a. Before the slide, his initial kinetic energy is

$\displaystyle k_o=(mv_0^2)/(2)$

$\displaystyle k_o=((75)6^2)/(2)$

$\boxed{\displaystyle k_o=1350\ J}$

b. Once he reaches the base, the player is at rest, thus his final kinetic energy is

$\displaystyle k_1=((75)0^2)/(2)$

$\boxed{\displaystyle k_1=0\ J}$

c. The change of kinetic energy is

$\Delta k=k_1-k_0=0\ J-1350\ J$

$\boxed{\Delta k=-1350\ J}$

d. The work done by friction to stop the player is

$W=\Delta k=k_1-k_0$

$\boxed{W=-1350\ J}$

e. We compute the force of friction by using

$W=F.x$

and solving for x

$\displaystyle F=(W)/(x)$

$\displaystyle F=(-1350\ J)/(2\ m)$

$\boxed{F=-675\ N}$

The negative sign indicates the force is against movement

URGENT HELP!Rank the states of matter from weakest to strongest intermolecular forces
Question 1 options:

gas, solid, liquid

gas, liquid, solid

solid, liquid, gas

solid, gas, liquid

The state of matter with an indefinite shape and definite volume is _____.
Question 3 options:

Solid

liquid

gas

plasma

plasma

Deposition and condensation is an example of an endothermic reaction
Question 7 options:
True
False

Which one of the following statements best describes the particles in a gas?
Question 8 options:
They are very close together and are able to vibrate.
They are stationary and not able to vibrate
They are moving very slow and are far apart.
They are moving very fast and are far apart.

Answers

1) The forces of molecules is how strong they are being held together. Now, we know that solid is the last one, because it's particles are held CLOSELY and VERY TIGHTLY together, which is why it has a definite shape.And last of all, a gas's particles are held freely, which is why it has no shape. So the answer would be:- gas, liquid, solid

3) The state of matter that does not have a definite shape, but has a definite volume is a liquid. So the answer is :- liquid

7) False, an endothermic reaction is when it absorbs energy, and as we know that in a chemical reaction as the following, it tends to be an exothermic reaction, meaning that is releases energy. So the answer is:- FALSE

8) Gases have particles that are far apart (freely) and move fast. So the answer is:- They are moving very fast and are far apart.

Question 1'sanswer is gas, liquid, and solid.

Why? Think about it - solids hold better than any of those two - And gasses hold the weakest and liquid goes in the middle :)

Question 3 is liquid, because if you put like, we'll say water, if you put water into a round bottle it would look round, right? It would go for any other shaped bottle - It would look like that same shape. But you can't change the volume - It will always be the same

Question 7 is FALSE - They're actually exothermic reactions. :)

Last question 8 - They are moving very fast and are far apart -

Note that the closer together molecules are together, the harder something is :D

↑ ↑ ↑ Hope this helps! :D

Describe how absorption and scattering can affect a beam of light

Answers

it can scatter the light in all different directions

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