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earnstyle [38]
3 years ago
12

In the vertical columns of the periodic table:

Physics
1 answer:
vaieri [72.5K]3 years ago
4 0

Answer:

C. The number of shells increases from top to bottom

Explanation:

There are some trends about the periodic table, one of them is that in the vertical columns of periodic table, the number of shells increases from top to bottom.

From top to bottom in a periodic table, the number of electrons increases, thus more number of shells are needed to fill these electrons and the number of shells increases or we can say the atomic radius increases from top to bottom.

Hence, the correct option is "C".

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A car traveling at 60 km/h will skid 30 m when its brakes are locked. if the same care is traveling at 180 km/h, what will be th
Flauer [41]
The first car travels at 60km/h and skid at 30m away from the starting point while another car is also traveling at 180km/h. Now, we need to solve for the skidding distance.
We assigned variables such as:
V1=60km/h
V2=180km/h
Skid1=30m
Skid2=?
We solve this by ratio and proportion method such as shown below:
V1/V2=skid1/skid2
60/180=30/skid2
skid2=(30*180)/60
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Th answer is 90 meters.
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3 years ago
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Entropy is a measure of the _____ of a system. thermal energy mechanical energy disorder density
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The answer is disorder. It would be really hard to explain without being too complicated, but the entropy is the number of possible states that a system can realize under given conditions.
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3 years ago
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if it is true that the net charge in the universe does not change, how is it ever possible to charge an object that was initiall
olga55 [171]

By transferring electrical charges from one object to another

Explanation:

The law of conservation of electric charge states that the total electric charge of the universe is constant, therefore no charge can be created or destroyed, but only transferred.

Indeed, when an object is charged, this is due to the fact that charge carriers (typically electrons) are transferred to/from the object.

Consider an object initially neutral: this means that the object has initially an equal amount of positive charges (protons) and negative charges (electron).

Later, if we remove electrons from the object, then it will remain with an excess of protons: therefore, it will be positively charged. However, the electrons have not disappeared: simply, they have been moved somewhere else (on another object, for example, which will become negatively charged: so, the total net charge will still be zero).

Similarly, if we add electrons to the object, it will become negatively charged: however, the electrons have been removed from another object which is now positively charged, so the net charge still has not changed.

Learn more about electric charges:

brainly.com/question/8960054

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8 0
3 years ago
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dybincka [34]

Answer: To keep it basic start with temprature and inhibitors such as drugs that slow enzymes

surface area, temperature, concentration, and the presence of catalysts and inhibitors

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3 years ago
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When current flows through an electric motor, the electromagnet rotates. true or false?
Arte-miy333 [17]

Answer: true

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It helping it rotate

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