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Lemur [1.5K]
4 years ago
5

In a closed circuit containing one resistor and a battery, if the voltage in the battery increases, the current going through th

e resistor increases. Why does this occur? A) as the electrons are sped up, they bunch closer together B) as the electrons have more energy, they vibrate more rapidly C) as the electrons are pushed more by the battery, they move faster through the circuit D) as the distance around the circuit increases, the electrons take longer to travel around
Physics
2 answers:
pav-90 [236]4 years ago
8 0

C) as the electrons are pushed more by the battery, they move faster through the circuit

Stells [14]4 years ago
4 0

ANSWER:

C) as the electrons are pushed more by the battery, they move faster through the circuit

EXPLANATION:

Electrons move very slowly. When we supply voltage the current through a wire moves which causes each electron to move in the direction of the flow of current, the electrons which were in random motions previously now move in one direction which is the direction of current,the more we supply the current the faster electrons will move in the circuit,which will cause the current to increase with increase in voltage.

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Answer

Time period T = 1.50 s

time t = 40 s

r = 6.2 m

a)

Angular speed ω = 2π/T

                              = \dfrac{2\pi }{1.5}  

                              = 4.189 rad/s

Angular acceleration α = \dfrac{\omega}{t}

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b)The maximum speed.

       v = 2πr/T

          = \dfrac{2\pi \times 6.2}{1.5}

          = 25.97 m/s

So centripetal acceleration.

        a = \dfrac{v^2}{r}

          = \dfrac{25.97^2}{6.2}

          =  108.781 m/s^2

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Answer:

D

Explanation:

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3 years ago
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8 0
3 years ago
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malfutka [58]

the work done on the car by the force of its engine is 78,000 J.

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b. Completed work = force x distance. Friction force = 240 N, that is,

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c. Kinetic energy = 1 \ 2 x m x v2

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<h3>How powerful is the engine of a car? </h3>

Mainstream car and truck engines typically produce 100-400 pounds. -Torque feet. This torque is generated by the engine piston as it moves up and down on the engine crankshaft, causing the engine to rotate (or twist) continuously.

Learn more about work done here:  brainly.com/question/25573309

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