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Setler79 [48]
3 years ago
7

The number of protons equals the atomic number. TRUE OR FALSE?

Physics
1 answer:
Shkiper50 [21]3 years ago
5 0

Answer:

true

Explanation:

The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.

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There is more than one answer
Sveta_85 [38]

Explanation:

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Calculate the area of a square with a length of 5cm
mihalych1998 [28]

Answer:

25cm^2

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A ball is thrown upward. As it passes 5.0 m height it is traveling at 4.0 m/s up. What was its initial upward velocity? (a) 7.0
sveticcg [70]

Answer:

c) 10.7m/s

Explanation:

From the exercise we know that at 5m the ball  is traveling at 4m/s

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v_{y}^{2}=v_{oy}^{2}+2g(y-y_{o})

Since the initial height is 0

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5 0
3 years ago
an electric device is plugged into a 110v wall socket. if the device consumes 500 w of power, what is the resistance of the devi
andreev551 [17]

Answer: R=24.2Ω

Explanation: <u>Power</u> is rate of work being done in an electric circuit. It relates to voltage, current and resistance through the following formulas:

P=V.i

P=R.i²

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The resistance of the system is:

P=\frac{V^{2}}{R}

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R=\frac{110^{2}}{500}

R = 24.2Ω

<u>For the device, resistance is 24.2Ω.</u>

4 0
3 years ago
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