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Natasha2012 [34]
3 years ago
13

Which atomic particle gives an atom gives it it’s chemical properties? Question 3 options: A.Isotopes B.Neutrons C.Electrons D.P

rotons
Physics
2 answers:
bulgar [2K]3 years ago
7 0
C. is your answer! Hope it helps!
Vitek1552 [10]3 years ago
3 0

The answer is protons, because neutrons only contribute to the mass not the chemical property, and the numbers of electrons only change the electric charge

Please give brainlyist if correct.

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Which of the following correctly describes the relationship between current and voltage as the voltage of a battery increases. R
Y_Kistochka [10]

Answer:_COC1\/2+_H\/2O>_HC1+CO\/2

Explanation:

Need help asap

3 0
3 years ago
How many times for the moon circle the Sun in a year
Juliette [100K]

The Earth and the Moon circle their common center of mass, and
that common center of mass is what circles the Sun, once a year.


7 0
3 years ago
CHEGG 42 mT magnetic field points due west. If a proton of kinetic energy 9 x 10-12 J enters this field in an upward direction,
alexdok [17]

Answer:

The  magnitude of the Force is  F = 697 *10^{-15}N  and the direction is South  

Explanation:

From the question we are told that

         The magnetic field point due west and since East point toward the positive x -axis(i)  then this magnetic field would be mathematically represented as

                \= B = 42(-i)mT = 42*10^{-3} (-i) T

Now from the question we are told that the kinetic energy is

             KE = 9*10^{-12}J

Now this kinetic energy can be mathematically represented as

                  KE = \frac{1}{2}mv^2

Where m is the mass of proton which has a general value of

           m = 1.67*10^{-27}kg

Now making the subject of the formula

                v = \sqrt{\frac{KE}{0.5 * m} }

Substituting values we have

               v = \sqrt{\frac{9*10^{-12}}{0.5 * 1.67*10^{-27}} }

                 = 10.37*10^7m/s

Now from the question we are told that proton is moving upward which is in the positive z direction so the velocity of the proton would be in the positive

So the velocity would be

            \= v = 10.37*10^{7} \r k \ m/s

Now the magnetic Force can be mathematically represented as

          \= F = q \= v * \=  B

Where q is the charge on the proton which has a general value of  q =1.6*10^{-19}C

Now substituting the value

          \= F = 1.6*10^{-19 } * (10.37 *10^7) \r k * (42 *10^{-3})(-i)

              = 697*10^{-15} J

Now according to Fleming's left hand rule the direction of the magnetic force is south toward the negative Y - direction (-j)

So the force can be denoted as

                 \= F = 697*10^{-15}(-j) N

             

             

6 0
3 years ago
What function does the shape of the star-nosed mole’s nose serve?
horsena [70]
Hello!

The shape of the star-nosed mole's nose helps it to take away the excess heat.

Letter b)

Hugs!
6 0
3 years ago
Object A is attached to ideal spring A and is moving in simple harmonic motion. Object B is attached to ideal string B and is mo
natita [175]

Answer:

Explanation:

Let the time period of A and B be Ta and Tb respectively. Similarly , amplitude of A and B be Aa and Ab respectively.

Given ,

Tb = 2 Ta

Ab = 2 Aa

maximum speed of a particle in SHM = ω A , where ω is angular velocity and A is amplitude .

ω = 2π / T

If maximum speed of A be Va

Va = ω A

= 2π( Aa / Ta )  

If maximum speed of B be Vb

Vb = ω A

= 2π (Ab / Tb)

Va / Vb = (2π Aa / Ta) x (Tb / 2π Ab)

= (Aa / Ab) x (Tb / T a )

=  .5 x 2 = 1

Va = Vb

Their maximum velocities will be equal.

6 0
3 years ago
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