Does a screw change the size of the effort force, the direction of the force, or both?

Answers

Answer 1
Answer: Well I'm thinking that it would be both.

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Why does the reaction H2O + Cu→no reaction not proceed to a product?The reaction proceeds too slowly to create products.


Copper has a higher activity than hydrogen and cannot replace it.


Copper has a lower activity than hydrogen and cannot replace it.


The reaction cannot occur because water is a reactant.



answer is Copper has a lower activity than hydrogen and cannot replace it.

Answers

Answer: Option (c) is the correct answer.

Explanation:

It is known that a stronger element is able to displace a less stronger element in a chemical reaction.

And, according to the reactivity chart hydrogen is more reactive in nature than copper.

Therefore, when Cu is added to H_(2)O then there will be no reaction because copper is less reactive than hydrogen.

Thus, we can conclude that the reaction H_(2)O+Cu \rightarrow \text{no reaction} not proceed to a product because copper has a lower activity than hydrogen and cannot replace it.

Copper has a lower activity than hydrogen

What is the first quartile of the following data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38


A. 17

B. 12

C. 15

D. 11

apexs anwers is B.12

Answers

Answer:

Answer:

12

Explanation:

find the median:

19

find median of 10, 11, 12, 15, 17

median: 12

Please help i will give you 50 points what is the density of a book whose mass is 1,800 g and whose volume is 300 cm2

what is the mass of a ball whose density is 0.250 g/cm3 and whose is 200 cm3

Answers

Answer : The density of book is 6g/cm^3

The mass of a ball is, 50 grams.

Explanation :

Part 1 :

Density : It is defined as the mass contained per unit volume.

Formula used :

Density=(Mass)/(Volume)

Given :

Mass = 1800 g

Volume = 300cm^3

Now put all the given values in the above formula, we get :

Density=(1800g)/(300cm^3)=6g/cm^3

Therefore, the density of book is 6g/cm^3

Part 2 :

Formula used :

Density=(Mass)/(Volume)

Given :

Volume = 200cm^3

Density = 0.250g/cm^3

Now put all the given values in the above formula, we get :

0.250g/cm^3=(Mass)/(200cm^3)

Mass=0.250g/cm^3* 200cm^3=50g

Therefore, the mass of a ball is 50 grams.

Answer: For your first question about the book, the answer is 6 g/cm^3. For the ball, your mass is 50 grams.

Explanation: density = mass/volume; for example: your book was 1,800 g. Divide that by 300 cm^3 to get 6g/cm^3. For the ball, mass = density*volume, so you need to multiply .250 by 200 cm^3

Could you give me information about atom?

Answers

An atom is the smallest thing ever known to exist. It can only be seen by the eye of a type of telescope. 

Which occurs during summer in the Northern Hemisphere? A. The earth is closer to the sun. B. The earth's axis is tilted so that the Northern Hemisphere faces the sun. C. The earth's axis is tilted so that the Northern Hemisphere faces away from the sun. D. The earth is farther away from the sun.

Answers

The answer is B. The earth's axis is tilted so that the Northern Hemisphere faces the sun. Hope this helps and good luck! :)

Name five kinds of landforms caused by plate movement, help!!

Answers

Volcanos,iceberg, tsunamis,earthquakes and plate rotation ? I don't what The last one
Is...
I know for sure volcanos are formed