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TEA [102]
3 years ago
12

All atoms of the same compound have the same number of protons neutrons and electrons

Physics
1 answer:
ikadub [295]3 years ago
4 0

Compounds don't have atoms.  Elements do.

All atoms of the same element have the same number of <em>protons</em>.
But they can have different numbers of neutrons and electrons.


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When operated on a household 110.0 V line, typical hair dryers draw about 1650 W of power. The current can be modeled as a long,
Andre45 [30]

Explanation:

Given that,

Voltage of household line, V = 110 V

Power of the hairdryer, P = 1650 W

During use, the current is about 1.95 cm from the user's hand.

(a) Power is given by :

P=V\times I\\\\I=\dfrac{P}{V}\\\\I=\dfrac{1650\ W}{110\ V}\\\\I=15\ A

(b) Again the power is given by :

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

R is resistance of the dryer

R=\dfrac{V^2}{P}\\\\R=\dfrac{(110)^2}{1650}\\\\R=7.34\ \Omega

(c) The magnetic field produced by the dryer at the user's hand is given by :

B=\dfrac{\mu_o I}{2\pi r}\\\\B=\dfrac{4\pi \times 10^{-7}\times 15}{2\pi \times 1.95\times 10^{-2}}\\\\B=1.53\times 10^{-4}\ T

Hence, this is the required solution.

4 0
2 years ago
Whats the definition of deposition​
Luda [366]
Deposition:

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7 0
3 years ago
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Light is emitted by electrons when they drop from one energy level to a lower level. Which transition results in the emission of
natulia [17]

Answer:

Level 4 to level 2

Explanation:

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Hence, the correct option is "Level 4 to level 2".

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How high is an object lifted if the total work done on it is 125 J and the force required to lift the object is 25 N? Use the eq
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The answer would be C. 5m
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2 years ago
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