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Mila [183]
2 years ago
15

Based off of the simulation pulley gizmo; how many people did it take to lift the armchair with a fixed pulley? (Look at Activit

y A question 2)
Question 5 options:

1


3


4


5

Chemistry
1 answer:
DedPeter [7]2 years ago
8 0

Answer:

IN WHICH GRADE YOU ARE????

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All the elements of a family in the periodic table have what feature in common? A) They all have similar chemical properties. B)
arlik [135]

The correct answer is A) They all have similar chemical properties.

Explanation:

In chemistry, the periodic table organizes visually the chemical elements. In this, elements are arranged according to different features. In the case of families of the elements, these refer to elements organized in the same column, for example, elements that are in column 18 form a family called noble gases.

These elements form a family because they have chemical properties; in the case of noble gases, this includes similar reactivity and physical features such as color and odor. Besides this, the elements of one family share a similar electron configuration but not the same number of electrons. This means, from the options given the one that identifies the elements that belong to a family is "They all have similar chemical properties".

6 0
2 years ago
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2) Imagine that a loudspeaker is producing quiet note with a low pitch
makvit [3.9K]

Answer:

Higher pitched sounds produce waves which are closer together than for lower pitched sounds. (Think of the slinky - if you produce waves rapidly they will travel quite close to each other, thus demonstrating a higher pitched sound.)

The pitch of a note will depend on a number of factors. One of these is the size of the vibrating object. On a glockenspiel or xylophone the high notes are made by the smaller bars. A smaller triangle or cymbal will make a relatively higher pitch note. On a stringed instrument such as a guitar or violin a thinner string will generally make a higher note, but also shortening the string by stopping it with the finger will produce a similar effect. On a set of pan pipes or a church organ it is the shorter pipes which make the higher notes when the air inside them vibrates.

Another factor which produces higher pitched notes is the tension within the vibrating object. A guitar string can be tuned to a higher pitch by adjusting the string tensioner. An elastic band can be stretched tighter and a drum skin can be tensioned to increase the pitch of the sound it produces.

3 0
2 years ago
In a lab, the mass of object A is 2.5 kg. Object A weighs:
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24.5 N hope it helps
4 0
3 years ago
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Un mol de Neón ocupa un volumen de 5 lt y una temperatura 300°K, cuál será su volumen si la temperatura disminuye en 50 °K, P y
Anna [14]

Answer:

No hoblo englas

Explanation:

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2 years ago
Based on the rocks they contain, predict how Devils Tower and the Giant's Causeway formed. Explain your answer in terms of extru
inessss [21]

Answer:

i'm not sure, so sorry

Explanation:

5 0
2 years ago
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