Wave is traveling at 60 cm/second and has a wavelength of 15 cm, what is the frequency?
1 answer:
The frequency of the wave is 4 Hz
Explanation:
The relationship between wave, frequency and speed of a wave is given by the equation:
where
v is the speed of the wave
f is the frequency
is the wavelength
For the wave in this problem, we have:
is the speed
is the wavelength
Solving the equation for f, we find its frequency:
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Answer:
The total momentum of the system before the collision is 0.0325 kg-m/s due east direction.
Explanation:
Given that,
Mass of the cart, m = 250 g = 0.25 kg
Initial velocity of the cart, u = 0.31 m/s (due right)
Mass of another cart, m' = 500 g = 0.5 kg
Initial velocity of the another cart u' = -0.22 m/s (due left)
Let p is the total momentum of the system before the collision. It is given by :
So, the total momentum of the system before the collision is 0.0325 kg-m/s due east direction.