PHYSICS MIDDLE SCHOOL

What phylum do animals with backbones belong to?

Answers

Answer 1
Answer: They belong to the kingdom of Chordata

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How was the speed of light determined

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Answer:

Speed of light = 3 * 10 ^8 m / s. Speed is related to the distance and time and so its unit is in meters and seconds. The speed of light value mentioned above is the value calculated in vacuum or air with the help of lasers.

But when it comes to water, refractive index has to be taken into account.The speed of light is faster in vacuum than other mediums.
Presently, the speed of light in a vacuum is defined to be exactly 299,792,458 m/s (approximately 186,282 miles per second). . An early experiment to measure the speed of light was conducted by Ole Romer, a Danish physicist, in 1676. Using a telescope, Ole observed the motions of Jupiter and one of its moons, Io

Some people think that because they exercise everyday, they can eat whatever they want. Is this true or false? Also, does the food you enter into your body affects the way you perform when you exercise? Yes or No, and why? Please justify your answers and respond to two other classmates.

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Answer: False

Explanation: This is false because, just because you exercise doesn't mean that it's going to reduce the amount of fat or sugar you just put into your body. Eating healthy and exercising is the way to go. Yes, what you eat does affect the way you perform your work out, you can have a side ache or you may throw up. You aren't even supposed to eat before working out.

Answer:

Just because you exercise everyday doesn't mean you can eat whatever you want. So that statement is false.

The food you eat can affect the way you perform when you exercise.

Explanation:

If you exercise then go home and eat a whole bag of chips what's the point of exercising. You need to have a balanced diet because whats the point of trying to lose weight just so you can gain it back or some more.

If you eat unhealthy foods that have grease,a lot of sodium, ect. It can affect the way you perform your exercises. If you..for example.. eat a lot of food with sodium (like salt) it can mess with your ovary which can cause health problem.

Which body system processes into a useable source of energy

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possibly limpathic or respiratory system

An air mass entering Alaska from the northern Pacific Ocean would most likely be labeled on a weather map as(1) cP                   (3) mP
(2) cT                    (4) mT

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i think the air mass would be very likely to be labelled as : 2. cT cT air masses originated over mexican plateau region and desert SW. The air usually hot, dry , unstable at low levels and stable at upper levels cT and mT air will often create a boundary that is called a dryline

If we say that one quantity is directly proportional to another quantity, does this mean that they are equal to each other?

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If we say that one quantity is directlyproportional to another quantity, we do not mean they are equal to each other.

DIRECT PROPORTION:

  • The term "direct proportion" refers to the relationship between two variables in which a change in one causes a similar change in the other.

  • This means that when two quantities are directly proportional to one another, one quantity increases as the other increases and vice versa.

  • For example, if quantity A is directlyproportional to quantity B;
  1. when quantity A increases, quantity B also increases
  2. when quantity A decreases, quantity B also decreases.

  • Therefore, If we say that one quantity is directly proportional to another quantity, we do not mean they are equal to each other.

Learn more at: brainly.com/question/14664532?referrer=searchResults

NO !

It means that (one of them) divided by (the other one) is always the same number.

(Other people probably won't explain it to you this way, but I'm special, and this is true.

Anyway, the direct answer to your question is: No.)

Glacial episodes are an example of

Answers

they are an example of a positive feedback.
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