C. 1 Joule
Explanation:
Given:
Voltage = 1V
Quantity of charge = 1coulomb
Unknown:
Energy = ?
Solution:
The amount of work done is often related to the energy in a system.
In this electrical circuit, work done is the voltage that moves a particular charge.
work done = q x v
q is the quantity of charge
v is the voltage
the potential difference in circuit is the driving force of charges.
Work done = energy = qv
inputting the parameters;
Work done = 1 x 1 = 1J
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Answer:
2.353 × 10⁵ years
Explanation:
Since speed, v = distance/time
time, t = distance/speed
The distance, d = circumference of orbit = 2πr where r = radius of orbit = 8.5 kiloparsecs = 8.5 kiloparsecs × 3.1 × 10¹³ kilometers/parsec = 26.35 × 10¹³ kilometers and velocity of sun, v = 220 km/s
So, the time it takes to complete one orbit, T is
T = 2πr/v
= 2π × 26.35 × 10¹³ km/220 km/s
= 165.562 × 10¹³ km ÷ 220 km/s
= 0.753 × 10¹³ s
= 7.53 × 10¹² s
We now convert T to years
T = 7.53 × 10¹² s ÷ 3.2 × 10⁷ seconds/year
T = 2.353 × 10⁵ years
Answer:
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