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Nastasia [14]
4 years ago
11

The molecule that functions as the reducing agent (electron donor) in a redox or oxidation-reduction reaction _____. Group of an

swer choices a) gains electrons and loses potential energy b) loses electrons and loses potential energy c) loses electrons and gains potential energy d) gains electrons and gains potential energy.
Physics
1 answer:
Elina [12.6K]4 years ago
4 0

Answer:

b) loses electrons and loses potential energy

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What force arises from the physical contact of two objects?
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The correct answer is Contact force:)
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Negatively charged particles that orbit the nucleus of an atom are _________. A. electrons B. protons C. neutrons
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negativily chtarge particles are electron

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4 years ago
A resistor with r = 340 ω and an inductor are connected in series across an ac source that has voltage amplitude 490 v. The rate
Arada [10]

The value of impedance Z of the circuit, when the rate at which electrical energy is dissipated in the resistor is 316 w, is 508 ohms.

<h3>What is impedance Z of the circuit?</h3>

The impedance Z of the circuit is the ratio of voltage amplitude to the maximum current.

Z=\dfrac{V}{I}

Here, <em>V </em>is voltage amplitude and<em> I</em> maximum current.

A resistor with R = 300 Ω and an inductor are connected in series across an ac source that has voltage amplitude 490V. The rate at which electrical energy is dissipated in the resistor is 316 W.

The rate at which electrical energy is dissipated in the resistor is the product of the resistance and the square of current. Thus,

316=340\times I^2\\I=\sqrt{\dfrac{316}{340}}\\I=0.964\rm\; A

The impedance Z of the circuit is,

Z=\dfrac{V}{I}\\Z=\dfrac{490}{0.964}\\Z=508\rm\; ohm

Thus, the value of impedance Z of the circuit, when the rate at which electrical energy is dissipated in the resistor is 316 w, is 508 ohms.

Learn more about the impedance Z of the circuit here:

brainly.com/question/24225360

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5 0
2 years ago
A car initially travels west with a kinetic energy of 10 J. Then it travels east at three times its original speed. What is its
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KE₁ = 1/2mv²

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Reginald slipped and broke his leg in his kitchen when he ran inside to grab a cookie. His mother had just mopped the floor. Wha
padilas [110]

Answer:

A. <u>The water decreases the friction between the floor and the feet </u>

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3 years ago
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