Answer:
Take rabbit across
go back
Take fox across and go back across with rabbit
take carrots across and leave them with fox
go back and get rabbit
Step-by-step explanation:
Answer:
4^2
Step-by-step explanation:
Order of operations:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Answer:
3.5
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
20 x 10 = 200
10% = 0.10
200 x 0.10 = 20
The sound wave with a <u>frequency of 20</u> waves/sec is 800 longer than the wavelength of a sound wave with a <u>frequency of 16,000</u> waves/sec
<h3>Calculating wavelength </h3>
From the question, we are to determine how many times longer is the first sound wave compared to the second sound water
Using the formula,
v = fλ
∴ λ = v/f
Where v is the velocity
f is the frequency
and λ is the wavelength
For the first wave
f = 20 waves/sec
Then,
λ₁ = v/20
For the second wave
f = 16,000 waves/sec
λ₂ = v/16000
Then,
The factor by which the first sound wave is longer than the second sound wave is
λ₁/ λ₂ = (v/20) ÷( v/16000)
= (v/20) × 16000/v)
= 16000/20
= 800
Hence, the sound wave with a <u>frequency of 20</u> waves/sec is 800 longer than the wavelength of a sound wave with a <u>frequency of 16,000</u> waves/sec
Learn more on Calculating wavelength here: brainly.com/question/16396485
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