Answer:
<em>Since I can see no choices, I answered it in my own understanding.</em>
Brian - amplitude and frequency
Marcia - amplitude and longitudinal wave
Explanation:
"Sound" and "sound waves" are essential part of a person's life. They can be used for<u> communicating</u> and <u>detecting some object</u>s.
Brian loves singing in the shower which means that he is using a greater amplitude. Amplitude refers to the<em> intensity of the sound </em>or the amount of energy that a sound carries. When one sings in the shower, the sound cannot travel very far. It bounces immediately back to the person singing thus, making the sound bigger. Brian is also using a <em>different range of </em><em>frequency</em><em> compared to his normal way of talking.</em> The frequency of a normal male voice is normally 85 to 180 Hz. A person singing may have a frequency as high as 1,500 Hz.
Marcia talks loudly on the phone. This means that she is also using a greater amplitude because the intensity of her voice is big. Since she is using the telephone, this means that her voice travels in a longitudinal wave through the telephone. This allows her voice to reach to the person on the other end of the line.
Answer:
acceleration a = 1,557 m/s²
Explanation:
Let's use the kinematic equations, the initial distance is 70 m (Xo = 70 m), also if the track is 2200m long or 100m long when clearing use a distance in the path of
X = 2200-100-70 = 2030 m
With this data let's calculate the acceleration
Vf² = Vo² + 2 a X
the jet leaves the rest (Vo=0=
a = Vf2 / 2X
a = 80 2/2 2030
a = 1,557 m/s²
The spring constant of the spring is 18.18 N/m.
<h3>State Hooke's law?</h3>
Hokes's law states that, as long as the elastic limit of a body is not exceeded, the extension of the body is directly proportional to its force applied . Mathematically, we can write the Hooke's law as;
F = Ke
F = force applied
K = force constant
e = extension
Now;
F = 6N
K = ??
e = 33cm or 0.33 m
Thus
K = F/e
K = 6N/0.33 m
K = 18.18 N/m
Learn more about Hooke's law:brainly.com/question/13348278
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Answer:
B cus is in the south but that pfp tho
Answer: t = 10 s , s = 2,5 m
Explanation: (1) Speed v = v0 + at and (2) distance s = v0t + ½at².
Now v0 = 0.5 m/s , v = 0 and a = -0.05 m/s²
Solve from equation (1) t = -v0 / a = - 0.5 m/s / -0.05 m/s² = 10 s
Add t = 10 s to equation (2 ) s = 0.5 m/s · 10 s + 0.5· (-0.05 m/s²)· (10 s)²
= 5 m - 2,5 m = 2,5 m