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Gelneren [198K]
4 years ago
15

If an atom has 5 protons and 6 electrons it's charge​

Physics
1 answer:
Aliun [14]4 years ago
6 0
The answer is -1, because protons are positive charges and electrons are negative charges. If you subtract them you would get you answer if -1
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The entropy of an isolated system must be conserved, so it never changes.a. Trueb. Fasle
Snowcat [4.5K]

Answer:

B: False

Explanation:

The second law of thermodynamics states that: the entropy of an isolated system will never decrease because isolated systems always tend to evolve towards thermodynamic equilibrium which is a state with maximum entropy.

Thus, it means that the entropy change will always be positive.

Therefore, the given statement in the question is false.

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3 years ago
Is Experience Nature or Nurture
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Answer:

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4 years ago
In serving, a tennis player accelerates a 59 g tennis ball horizontally from rest to a speed of 34 m/s Assuming that the acceler
Akimi4 [234]

Answer:

The magnitude of the force exerted on the ball by the racquet is 94.73 N.

Explanation:

The force exerted on the ball is the following:

F = ma

Where:

m: is the mass of the ball = 59 g

a: is the acceleration

The acceleration of the ball can be found with the following kinematic equation:

v_{f}^{2} = v_{0}^{2} + 2ad

Where:

d: is the distance = 0.36 m

v_{f}: is the final speed = 34 m/s

v_{0}: is the initial speed = 0 (it start from rest)

Hence, the acceleration is:

a = \frac{v_{f}^{2}}{2d} = \frac{(34 m/s)^{2}}{2*0.36 m} = 1605.6 m/s^{2

Finally, the force is:

F = ma = 59 \cdot 10^{-3} kg*1605.6 m/s^{2} = 94.73 N    

Therefore, the magnitude of the force exerted on the ball by the racquet is 94.73 N.                                

                                                                 

I hope it helps you!                                                              

6 0
3 years ago
All of the following elements produce magnetic fields except
KatRina [158]
The answer should be copper. hope this helps :D
6 0
3 years ago
Read 2 more answers
Atoms and molecules are constantly in motion. The more kinetic energy atoms or molecules have, the faster they move about. In wh
lianna [129]

Answer:solid

Explanation:And a solid the malicules are compact so they can move

4 0
3 years ago
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