The time it will take the airplane to pass the radar station is 10.3 s.
<h3 /><h3>What is time</h3>
Time can be defined as the progression of event, from the past to the future through the present.
To calculate the time it will take the airplane to pass over the radar station, we use the formula below.
Formula:
- v = d/t............ Equation 1
Where:
- v = Velocity
- d = Distance
- t = Time
Make t the subject of the equation
- t = d/v.......... Equation 2
From the question,
Given:
Substitute these values into equation 2
- v = 1/350
- v = 0.00286 h
- t = 0.00286×3600 s
- t = 10.3 s
Hence, the time it will take the airplane to pass the radar station is 10.3 s.
Learn more about time: brainly.com/question/10428039
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The correct answer is (B) Consumptive.
Explanation:
"Consumptive use" is the term used in the field of Water Science to define "the <span>part of water withdrawn that is evaporated, given off by plants, used by crops, consumed by humans or livestock, or otherwise removed from the immediate water environment. It is also referred as water consumed." Hence the correct answer is (b) Consumptive.
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Answer:
The final velocity of the fisherman and the boat = -1.27 m/s
Explanation:
Mass of fisherman, M₁ = 81 kg
Mas of Rowboat, M₂ = 136 kg
Initial velocity of the fisherman, v₁ = -3.4 m/s (Westwards)
Initial velocity of the rowboat, v₂ = 0 m/s ( It is at rest)
The final velocity of the fisherman and the boat, v = ?
Using the principle of momentum conservation
M₁v₁ + M₂v₂ = (M₁ + M₂) v
-(81*3.4) + (136*0) = (81 + 136) v
-275.4 = 217v
v = -275.4/217
v = -1.27 m/s
<h3><u>Answer</u>;</h3>
= 22°
<h3><u>Explanation</u>;</h3>
- According to Snell's law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant. The constant value is called the refractive index of the second medium with respect to the first.
- Therefore; Sin i/Sin r = η
In this case; Angle of incidence = 90° -60° =30°, angle of refraction =? and η = 1.33
Thus;
Sin 30 / Sin r = 1.33
Sin r = Sin 30°/1.33
= 0.3759
r = Sin^-1 0.3759
= 22.08
<u>≈ 22°</u>