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defon
3 years ago
13

If an element has a charge of 2+, how many more protons does it have than electrons?

Physics
2 answers:
yulyashka [42]3 years ago
6 0
<span>If an element has a charge of 2+, It has 2 more proton than electrons</span>
Shtirlitz [24]3 years ago
5 0

Answer:

Explanation:

If a body loses some electrons, it becomes positively charged.

Here element having charge + 2 unit, it means the two electrons are removed from the element.

As we know that the atom is electrically neutral, it means the number of protons is equal to the number of neutrons.

So, if two electrons are removed, it means the now, the number of protons are two more than the number of electrons.

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2. Three super strong teenagers pull a heavy crate across the floor. Dion pulls with a force of 18.5 N towards 0°. Shirley pulls
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Answer:

A) The resultant force is 43.4 [N]

B) The movement of the heavy crate is going to the right and in the negative direction on the y-axis

Explanation:

We need to make a sketch of the different forces acting on the heavy crate.

In the attached image we can see the forces and the sum of the vector with their respective angles.

Forces in the X-axis

Fdionx=18.5N\\\\Fshix=16.5*cos(30)=14.29N\\Fjoanx=19.5*cos(60)=9.75N\\\\Forcex= 18.5 + 14.29 + 9.75 = 42.54 N

Forces in the y-axis

FDiony=0[N]\\Fshirley= 16.5*sin(30)=8.25[N]\\Fjoany=19.5*sin(60)=16.88 [N]\\\\Forcesy=0+8.25-16.88= -8.63[N]

Using the Pythagorean theorem

Tforce=\sqrt{(42.54)^{2} +(8.63)^{2} } \\\\Tforce= 43.4N

The movement of the heavy crate is going to the right and in the negative direction on the y-axis, this can be easily seen in the graphical sum of vectors.

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