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Llana [10]
3 years ago
14

What is the atomic number of this element?

Physics
2 answers:
Inessa [10]3 years ago
7 0

Answer: The number of protons in the nucleus of an atom determines an element's atomic number. In other words, each element has a unique number that identifies how many protons are in one atom of that element. For example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.

Explanation:

Zina [86]3 years ago
5 0
The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon


So I believe it’s 6 hope this helps if not reply back
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Carbon has six protons. Which model shows a neutral atom of carbon? ​
MatroZZZ [7]

Explanation:

Neutral carbon-12 (or any carbon atom) has 6 electrons with a total negative charge of 6e- orbiting a nucleus with a total positive charge of 6e+, so that the total net charge is zero. The nucleus is made up of 6 protons, each with a positive charge of e+, and 6 neutrons, each with zero charge.

4 0
2 years ago
Find the tension in the two ropes that are holding the 4.2 kg object in place.
Blababa [14]

Answer:

The tension in the two ropes are;

T1 = 23.37N T2 = 35.47N

Explanation:

Given mass of the object to be 4.2kg, the weight acting on the bag will be W= mass × acceleration due to gravity

W = 4.2×10 = 42N

The tension acting on the bag plus the weight are three forces acting on the bag. We need to find tension in the two ropes that will keep the object in equilibrium.

Using triangular law of force and sine rule to get the tension we have;

If rope 1 is at 57.6° with respect to the vertical and rope 2 is at 33.8° with respect to the vertical, our sine rule formula will give;

T1/sin33.8° = T2/sin57.6° = 42/sin{180-(33.8°+57.6°)}

T1/sin33.8° = T2/sin57.6° = 42/sin88.6°

From the equality;

T1/sin33.8° = 42/sin88.6°

T1 = sin33.8°×42/sin88.6°

T1 = 23.37N

To get T2,

T2/sin57.6°= 42/sin88.6°

T2 = sin57.6°×42/sin88.6°

T2 = 35.47N

Note: Check attachment for diagram.

7 0
3 years ago
ONLY ANSWER IF YOU KNOW 100% BRAINLIEST TO THE FIRST CORRECT ANSWER, AND ANSWER ASAP!
saul85 [17]

Answer: Meter and second

5 0
1 year ago
Read 2 more answers
Why do earthquakes at divergent plate boundaries not cause tsunamis?
oksano4ka [1.4K]

Answer:

Earthquakes and volcanoes generate the great majority of tsunamis, and the theory of plate tectonics explains the cause of earthquakes and volcanoes. ... The San Andreas fault in California occurs at this type of plate boundary. At divergent boundaries, plates move away from each other.

Explanation:

hope it helps you

mark me as brainliest!!

4 0
3 years ago
9. Which of the following methods can be used to cut down on brush sparking in a DC generator?
rusak2 [61]

Answer:

<em>Installing interpoles in armature core helps to cut down the spark in DC generators. </em>

Explanation:

A dc generator has a split ring type commutator to convert ac current generated to dc. The commutator comes in contact with the brushes throughout the working of the generator. Sparks occur in this region of contact.

When current flows through the armature coil it produces armature flux which opposes the main flux. This is called armature reaction and is the reason for sparks.

Interpol's are small auxiliary poles placed between the main poles of the generator. They are wound by wires of a number of turns connected in series with the armature. Interpol's produce a field that cancels the magnetising field of the armature and thus cancels armature reaction.

5 0
3 years ago
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