<span>8,480 Joules. You must multiply by the angle in radians through which the target object rotates. 4.5 x 2 x 3.14 = 28.26666666 J for each turn
28.26666666 x 300 = 8480</span>
the answer is C because i did it and got it right
Answer:
0.017 m
Explanation:
Wavelength: This can be defined as the distance covered in one complete oscillation by a wave. The S.I unit of wave length is meter (m).
The expression for wave length is given as
v = λf ............................... Equation 1
Where v = speed of sound in air, λ = wave length of sound, f = frequency of sound.
make λ the subject of the equation,
λ = v/f ............................... Equation 2
Given: v = 340 m/s, f = 20000 Hz
Substitute into equation 2
λ = 340/20000
λ = 0.017 m.
Hence the wave length of sound in air = 0.017 m
The function is electromagnets.<span />
