Answer:
Drift velocity of conduction electrons in Gold = 8.73 × 10⁻⁶ m/s = 8.73 μm/s
Explanation:
Drift velocity, v, is given by
v = I/(nAq)
where v = drift velocity
I = current in the wire
n = number of electrons per cubic metre for the wire
A = Cross sectional Area of the wire
q = charge on one electron
I = 0.373 A
A = πD²/4 = π(0.0024)²/4 = 4.52 × 10⁻⁶ m²
q = 1.602 × 10⁻¹⁹ C
n = 5.90 × 10²⁸ electrons/m³
v = 0.373/(5.90 × 10²⁸ × 4.52 × 10⁻⁶ × 1.602 × 10⁻¹⁹) = 8.73 × 10⁻⁶ m/s
Answer:
a)188.65m
b)154.35m
c)243.7m
Explanation:
Given data:
(a) The distance from the kicker to each of the 2 spectators is given by:
where,
v= speed of sound
=time taken for the sound waves to reach the ears
m
(b)
where,
v= speed of sound
=time taken for the sound waves to reach the ears
(c)As the angle b/w slight lines from the two spectators to the player is right angle,
hypotenuse=the distance b/w 2 spectators
and, the slight lines are the other 2 lines
1. The red ball was potential energy until it was hit by the pendulum converting into kinetic energy.
2. The 5 pounds was a potential energy, until the rope was cut by the scissors, this made the 5 pounds become kinetic energy.
3. The bucket was a potential energy, till the books landed in it causing it to fall, this became kinetic energy
Answer:
C momentum change
Explanation:
An impulse results in a change of momentum.
An impulse is a force action over a period of time.
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▹ Answer
<em>B. Anxiety</em>
▹ Step-by-Step Explanation
Anxiety isn't a behavior since it's a feeling. Behavior and feeling are different things therefore, anxiety is the correct answer.
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