Answer:
V0 = 44.97m/s
Height above fence = 66.67m
Explanation:
The detailed calculation is done as shown in the attachment
The angular frequency of the wave is determined as 75.4 rad/s.
<h3>
What is wave function?</h3>
A wave function is a mathematical equation for the motion of the wave.
y(x, t) = A sin(kx + ωt + Φ)
where;
- ω is angular speed
- k is angular wavenumber
- Φ is phase angle
<h3>What is angular frequency?</h3>
The angular frequency is the angular displacement of any wave element per unit of time or the rate of change of the waveform phase.
<h3>Angular frequency</h3>
ω = 2πf
ω = 2π(12)
ω = 75.4 rad/s
Thus, the angular frequency of the wave is determined as 75.4 rad/s.
Learn more about angular frequency here: brainly.com/question/3654452
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Answer: the answer should be 6,720 decameters.
Answer:
<h2>
96 Joules</h2>
Explanation:
We know that efficiency is the ratio of output power by input power. i.e. Efficiency describes the quality of machine or system how good it is.
Solution,
Energy input of system = 120 J
Efficiency = 80% = ![\frac{80}{100} = 0.8](https://tex.z-dn.net/?f=%20%5Cfrac%7B80%7D%7B100%7D%20%20%3D%200.8)
Now,
According to definition,
Efficiency = ![\frac{output}{input}](https://tex.z-dn.net/?f=%20%5Cfrac%7Boutput%7D%7Binput%7D%20)
Cross multiplication:
![output \: = \: 0.8 \times 120](https://tex.z-dn.net/?f=output%20%5C%3A%20%20%3D%20%20%5C%3A%200.8%20%5Ctimes%20120)
Calculate the product
![output \: = 96 \: joules](https://tex.z-dn.net/?f=output%20%5C%3A%20%20%3D%2096%20%5C%3A%20joules)
Hope this helps...
Good luck on your assignment...
Answer:
The first is the electric field, which describes the force acting on a stationary charge and gives the component of the force that is independent of motion. The magnetic field, in contrast, describes the component of the force that is proportional to both the speed and direction of charged particles.