Ashley is flying a plane that has to reach a gradient of 360m/km in order to take off and not crash. Her goal is to travel from sea level to an elevation of 1000m at a distance of 2.8km. Calculate the gradient of Ashley’s flight and determine if she will crash!
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Ответ:
She is likely to crash because her flight gradient is lesser than the flight gradient required gradient to avoid crashing
Explanation:
The given parameters are;
The required gradient of the plane Ashley is flying needs to reach in order to take off and not crash = 360 m/km
The initial elevation of the plane Ashley is flying = Sea level = 0 m
The goal Ashley intends to make = Elevation of 1000 m at 2.8 km. distance
∴ Ashley's goal = Traveling from sea level to 1000 m at 2.8 km horizontal distance
We have;
The gradient = Rate of change of elevation/(Horizontal distance)
Therefore;
The gradient of Ashley's flight = (1000 - 0)/(2.8 - 0) = 357.143 m/km
The gradient of Ashley's flight ≈ 357.143 m/km which is lesser than the required 360 m/km in order to take off and not crash, therefore, she will crash.
Ответ:
The electric field is![E = 7.5 *10^{6} \ N/C](/tpl/images/0708/8939/06bdf.png)
Explanation:
From the question we are told that
The radius of the metal sphere is![R = 2.0 \ cm = 0.02 \ m](/tpl/images/0708/8939/7b038.png)
The excess charge which the metal sphere carries is![q = 3.0 \mu C = 3.0*10^{-6} \ C](/tpl/images/0708/8939/301b7.png)
The distance of the position being to the center is![D = 6.0 \ cm = 0.06 \ m](/tpl/images/0708/8939/e4749.png)
The coulomb constant is![k =9*10^{9} \ N \cdot m^2 /C^2](/tpl/images/0708/8939/b91a6.png)
Generally the electric field is mathematically represented as
substituting values