Partially correct answer iconYour answer is partially correct. A proton initially has and then 2.30 s later has (in meters per s
econd).
(a) For that 2.30 s, what is the proton's average acceleration in unit vector notation,
(b) in magnitude, and
(c) the angle between and the positive direction of the x axis
(a) For that 2.30 s, what is the proton's average acceleration in unit vector notation,
(b) in magnitude, and
(c) the angle between and the positive direction of the x axis
1 answer:
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Answer:
r₂ = 0.2 m
Explanation:
given,
distance = 20 m
sound of average whisper = 30 dB
distance moved closer = ?
new frequency = 80 dB
using formula
I₀ = 10⁻¹² W/m²
now,
to hear the whisper sound = 80 dB
we know intensity of sound is inversely proportional to square of distances
r₂ = 0.2 m