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Vadim26 [7]
3 years ago
6

Does the atomic number of an atom change?

Physics
1 answer:
Ray Of Light [21]3 years ago
8 0

Answer:

An elements atomic number will never change, that is because the atomic number is its "identity."

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Explain the scientific meaning of the word random
Semenov [28]

Explanation:

In general the word random means by chance. The event that occurs unknowingly rather than according to plan is called at its randomness.

But in science, the word random relates with a type of event that is described by its probability distribution.

Also, random means the entropy of the system i.e. it is a thermodynamic quantity that represents the amount of energy in the system that is unavailable for doing work.

8 0
3 years ago
One long wire carries current 30.0 A to the left along the x axis. A second long wire carries current 50.0 A to the right along
strojnjashka [21]

Answer:

y = -0.42 m

1.16*10^-4 T(-k)

-1.73*10^4 N/C (j)

Explanation:

(a) Above the pair of wires, The field out of the page of the 50 A current will be stronger than the (—k) field of the 30 A current (k).  

Between the wires, both produce fields into the page.  

below the wires, y = -  | y |

B = u_o*I/2πr (-k) + u_o*I/2πr (k)

0 = u_o/2πr[50/  | y |+0.28 (-k) + 30/| y | (k) ]

50 | y | = 30(| y | + 0.28)

| y | = -y

-50 y = 30*(0.28 - y)

y = -0.42 m

b)  B = u_o*I/2πr (-k) + u_o*I/2πr (k)

B = 4π*10^-7/2π[ 50/0.28 -1 (-k) +30/1(-k) ]

  = 1.16*10^-4 T(-k)

F = qv*B

F = (-2*10^-6)*(150*10^6(i) )(1.16*10^-4(-k))

F = 3.47*10^-2 N(-j)

c) F_e = qE

      E = F_e/q

E = 3.47*10^-2/-2*10-6

  = -1.73*10^4 N/C (j)

7 0
4 years ago
Sean pushes a box with a force of 100 N. Christian pushes an identical box with a force of
kap26 [50]

Answer:

Christian

Explanation:

Given that

Force applied by Sean ,F₁=100 N

Force applied by Christian ,F₂=200 N

Lets take mass of the box =  m kg

As we know that from second law of Newton's

F= m a

F=Force,m=mass ,a=acceleration

F_1=ma_1

100=m\times a_1

a_1=\dfrac{100}{m}\ m/s^2

F_2=ma_2

200=m\times a_2

a_2=\dfrac{200}{m}\ m/s^2

From the above we can say that acceleration a₂ is greater than a₁ is for the same mass of the box.

Therefore Christian will acceleration more for the box.

5 0
3 years ago
A soccer ball with a mass of 0.434 kg approaches a player horizontally with a speed of 13.0 m/s. The player kicks the ball with
zaharov [31]

Answer:

a) 15.49

b) Opposite to the ball's initial velocity

c) 258.16N

Explanation:

a)

\Delta p=m \Delta v\\\\\Delta p= (0.434)(13.0-(-22.7)) \\\\\Delta p=(0.434)(35.7)\approx 15.49 kg \cdot m/s

b)

Since the player is kicking the ball in the opposite direction to which it came, the impulse is being directed opposite to the ball's initial velocity.

c)

\Delta p= F \Delta t \\\\\\F=\dfrac{\Delta p}{\Delta t} \\\\\\F=\dfrac{15.49 kg \cdot m/s}{0.06 s}\approx 258.16N

Hope this helps!

7 0
4 years ago
What kind of energy involves the flow of positive charges?
solniwko [45]
Electrical

Electrical would be the energy that involves the flow of positive changes
7 0
3 years ago
Read 2 more answers
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