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3 years ago

Please answer this soon

Physics

1 answer:

OverLord2011 [107]3 years ago

3 0

Answer:

lava plateau-material fills in valleys

caldera goes-bowl shaped depression

volcanic soil-rich in nutrients

shield volcano-wide summit, gentle slope

cinder cone-made of pieces of lava

Explanation:

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¿Por qué si cargas a uno de tus compañeros por cierto tiempo no estás realizando un trabajo mecánico?

VladimirAG [237]

Answer:

I will answer this in English, we can translate it to:

Why if you charge a mate by an amount of time you are not doing work?

This happens because work is defined as the displacement done by a force:

W = d*F

where W is work, d is the distance, and F is the force.

This means that the amount of time that you are charging your mate does not affect the mechanical work, the only time that you are doing work is when you are lifting him.

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4 years ago

Your friend says that for a moving object to continue moving, a force must be continually applied to it. Do you agree with your

Zigmanuir [339]

Answer:

I would disagree with my friend because that according to Newton's first law, an object in motion will continue to be in motion until stopped by another object/force. If the object is already moving, it will stay in motion until something else stops it. There is no need for a force to be <em>continually</em> applied to it while it's already moving.

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2 years ago

Which of the following metals reacts with oxygen and acids but is not very reactive with water?

Lina20 [59]

Calcium is reactive with oxygen, acid, and water. Copper is not reactive with water as well as with acids, whereas magnesium is reactive with acid but reactive with water.

<h3>What is a Chemical Reaction?</h3>

One or more chemicals (the reactants) are changed into one or more other compounds during a chemical reaction (the products).Substances are made up of chemical components or chemical elements.

Each calcium atom donates a pair of electrons to an oxygen atom during the interaction between calcium and oxygen to create calcium oxide.

When calcium reacts with hydrochloric acid, it releases bubbles of hydrogen gas, and when large chunks of calcium react with hydrochloric acid, it releases hydrogen gas. Calcium in reaction with water produces calcium hydroxide and hydrogen gas

When magnesium and oxygen interact, they produce light that is so strong that it temporarily impairs your vision. Magnesium burns so brilliantly because it produces a lot of heat while doing so.

Magnesium reacts with hot water or water vapor to produce hydrogen gas and magnesium hydroxide.

Acid does not react with copper. Metals such as lead, copper, silver, and gold do not react with water at all.

To get more info about the chemical reaction:

brainly.com/question/3461108

#SPJ1

7 0

2 years ago

an object has a velocity of 0.12 rad/s. how many revolutions will the object make after traveling for 30 seconds?

Basile [38]

Answer:

We can write S = v * t where S is the distance traveled in time t

S = .12 rad/sec * 30 sec = 3.6 rad distance traveled

Also 2 * pi * N = S since there are 2 * pi rad / revolution

So 2 * pi * N = 3.6

N = 3.6 / (2 * pi) = .573 revolutions

7 0

3 years ago

How to get infinite thanks could you show me please ☺️

murzikaleks [220]

Answer: divide by zero, or square root of a negative

Explanation: If your question is how to get infinity as an answer to a problem, that generally means that the answer is undefined or doesn't exist.

A couple of ways to get that...

You try to divide by zero. In other words, a problem that asks you to perform something like this: 5/0= or 23/(4-4)= Such a problem will give you an error on a calculator because the answer is infinity or doesn't exist.
Another way is to try to get the square root of a negative number. That answer doesn't exist as a real number, so $\sqrt{-4\\}$ will also give you an error on a calculator.

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3 years ago