Bruh how did i get 3 warnings and 3 brainliests removed
2 answers:
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Answer:
The answer to your question is: c = 353 mi/h; Ф = 7.3°
Explanation:
You can see the picture below
To solve this problem, just imagine a right rectangle which the legs is 350 mi/h and 45 mi/h and we are going to find the hypotenuse.
c² = a² + b²
c² = 350² + 45²
c² = 122500 + 2025
c² = 124525
c = 352.9 ≈ 353 mi/h
tanФ = 45/ 350
tan Ф = 0.12
Ф = 7.3°
Answer:
The speed of the wave as it travelled through the brass bell is;
B. 4,700 m/s
Explanation:
The given parameters are;
The wavelength of the sound wave produced from the brass bell, = 3.5 m
The wavelength of the wave in the brass bell, = 47 m
The frequency of the wave in the brass bell, f = 100 Hz
The given equation for wave speed, v = f × λ
Therefore, the speed of the wave as it travelled through the brass bell, , is given as follows;
= f ×
= 100 Hz × 47 m = 4,700 m/s
The speed of the wave as it travelled through the brass bell = = 4,700 m/s
Explanation:
Let i, j and k represents east, north and upward direction respectively.
Velocity due north,
Velocity of the crosswind,
Velocity of downdraft, (downward direction)
(a) Let v is the position vector that represents the velocity of the plane relative to the ground. It is given by :
(b) The speed of the plane relative to the ground can be calculated as :
v = 66 m/s
Hence, this is the required solution.