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fomenos
2 years ago
12

Chemists use the periodic table to organize the elements. What are some ways in

Physics
1 answer:
Alisiya [41]2 years ago
3 0

Answer:

A. It groups elements that have similar properties.

C. It allows scientists to predict how a particular element will interact with others,

Explanation:

The periodic table of elements is a very useful table in chemistry which allows for the grouping of elements based on their atomic number.

Atomic number of elements is the number of protons they contain. The periodic table is based on the periodic law.

On the periodic table, there are trends and patterns from groups to groups and periods to periods.

  • It has been shown that elements in the same group have similar chemical properties. This is due to the number of valence electrons they have.
  • Also, based on the chemical and physical properties of a group, we can predict if the elements in one group will react with elements in another group
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Desde que altura debes de lanzar una canica de 50g para que adquiera una energia de 100j
AnnZ [28]

Answer:

204 m

Explanation:

When the marble is dropped from a certain height, its gravitational potential energy converts into kinetic energy. So the kinetic energy gained is equal to the variation of gravitational potential energy:

\Delta U=mg\Delta h

where

m is the mass of the marble

g = 9.8 m/s^2 is the acceleration of gravity

\Delta h is the change in height

In this problem, we have

m = 50 g = 0.05 kg

\Delta U = 100 J

Solving the formula for \Delta h, we find the necessary height from which the marble should be dropped:

\Delta h = \frac{\Delta U}{mg}=\frac{100}{(0.05)(9.8)}=204 m

7 0
3 years ago
Why are vectors so important?
Zina [86]
Vectors represent relationships according to the position, velocity, and acceleration (of a moving object).
Because so many physical things are vectors, you have to be able to add and subtract them, helping you understand how the world around you behaves.

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6 0
3 years ago
If a 10-volt battery is placed across a 2-ohm resistance (R = 20), a current of
attashe74 [19]

Answer: current I = 0.5 A

Explanation:

Given that the

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According to ohms law

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V = potential difference

I = current

R = resistance

Make I the subject of formula

I = V/R

I = 10/20

I = 0.5 Ampere

4 0
3 years ago
At which of the above boundries is sea floor destroyed
Slav-nsk [51]
The continental crust
Hope it helps!!
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3 years ago
An apple from the top branch of the tree and an apple from the bottom branch of a tree fall at the same time. Which apple will h
Vedmedyk [2.9K]
B. The apple from the bottom will hit the ground earlier. This is because an increase in height causes an increase in the time that the object will fall, and therefore will affect the final velocity of the falling object. Moreover, the reduction in velocity due to friction from the air should also be considered.
3 0
3 years ago
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