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3 years ago

How many electrons does nitrogen (N) need to gain to have a stable outer electron shell? 1 2 3 4

Physics

2 answers:

8090 [49]3 years ago

6 0

Nitrogen has an outer shell with 5 electrons it needs 3 to make 8 and be stable

Anna11 [10]3 years ago

6 0

Answer:

i think its 3

Explanation:

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PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!! 80 POINTS!!!!!!!!!!!!

Alona [7]

Answer: clay

Explanation:

Florida is mainly influences by Spanish culture, so building with clay and wood would make sense, knowing that that is how pueblas are built.

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3 years ago

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What is meant by the term 'total internal reflection'? (GCSE Level)

scZoUnD [109]

Explanation:

Total Internal Reflection (TIR) is a phenomenon in optics, by which light experiences complete reflection at an interface between two media.

In the figure i > © experience total internal reflection

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2 years ago

Select all the correct answers.

amid [387]

Answer:

Explanation:

because in the moving object there's a certain energy applied

8 0

3 years ago

A person swings a 0.546-kg tether ball tied to a 4.56-m rope in an approximately horizontal circle. If the maximum tension the r

Murrr4er [49]

Answer:

2.1 rad/s

Explanation:

Given that,

Mass of a tether ball, m = 0.546 kg

Length of a rope, l = 4.56 m

The maximum tension the rope can withstand before breaking is 11.0 N

We need to find the maximum angular speed of the ball. Let v is the linear velocity. The maximum tension is balanced by the centripetal force acting on it. It can be given by :

$F=\dfrac{mv^2}{r}\\\\v=\sqrt{\dfrac{Fr}{m}} \\\\v=\sqrt{\dfrac{11\times 4.56}{0.546}} \\\\=9.584\ m/s$

Let $\omega$ is the angular speed of the ball. The relation between the angular speed and angular velocity is given by :

$v=r\omega\\\\\omega=\dfrac{v}{r}\\\\=\dfrac{9.584}{4.56}\\\\=2.1\ rad/s$

So, the maximum angular speed of the ball is 2.1 rad/s.

4 0

3 years ago

A proton moving at 8.9 × 106 m/s through a magnetic field of 0.96 T experiences a magnetic force of magnitude 3.8 × 10−13 N. Wha

goblinko [34]

Answer: 15.66 °

Explanation: In order to solve this proble we have to consirer the Loretz force for charge partcles moving inside a magnetic field. Thsi force is given by:

F=q v×B = qvB sin α where α is teh angle between the velocity and magnetic field vectors.

From this expression and using the given values we obtain the following:

F/(q*v*B) = sin α

3.8 * 10^-13/(1.6*10^-19*8.9*10^6* 0.96)= 0.27

then α =15.66°

8 0

3 years ago