<h2>Answer:</h2>
The speed of the sound wave is 340 m/s. The correct option is C.
<h3>Explanation:</h3>
Here in question description the frequency and wave length is given and we have to find the velocity/speed of the sound wave.
Frequency is the time taken for the passage of one wave. Wavelength is the total length of crust and trough in meters.
The velocity is the product of frequency and wavelength.
V = λ ∙ f
By putting the values in given formula:
v = 100 Hz × 3.4 m = 340 m/s
Hence the speed of the wave is 340 m/s.
Answer:
1.44
Explanation:
0.1mm x 365 = 3.65mm
3.65mm into inches is 1.44
Answer:
230.4 N
Explanation:
From the question given above, the following data were obtained:
Charge (q) of each protons = 1.6×10¯¹⁹ C
Distance apart (r) = 1×10¯¹⁵ m
Force (F) =?
NOTE: Electric constant (K) = 9×10⁹ Nm²/C²
The force exerted can be obtained as follow:
F = Kq₁q₂ / r²
F = 9×10⁹ × (1.6×10¯¹⁹)² / (1×10¯¹⁵)²
F = 9×10⁹ × 2.56×10¯³⁸ / 1×10¯³⁰
F = 2.304×10¯²⁸ / 1×10¯³⁰
F = 230.4 N
Therefore, the force exerted is 230.4 N