A perfectly spherical orange is split into four equal sections. if the radius of the orange is 4 centimeters, what is the total
2 answers:
The total surface area of one slice will be 64 π cm².
<h3>What is the total surface area?</h3>The total surface area includes the base as well as the curving component. It is the whole area covered by the object's surface.
The total area of a form with a curved surface and base is equal to the sum of the two areas.
The total surface area of the sphere will be;
Hence the total surface area of one slice will be 64 π cm².
To learn more about the total surface area refer to the link;
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Answer:
a) t = 20 [s]
b) Can't land
Explanation:
To solve this problem we must use kinematics equations, it is of great importance to note that when the plane lands it slows down until it reaches rest, ie the final speed will be zero.
a)
where:
Vf = final velocity = 0
Vi = initial velocity = 100 [m/s]
a = desacceleration = 5 [m/s^2]
t = time [s]
Note: the negative sign of the equation means that the aircraft slows down as it stops.
0 = 100 - 5*t
5*t = 100
t = 20 [s]
b)
Now we can find the distance using the following kinematics equation.
x - xo = distance [m]
x -xo = (0*20) + (0.5*5*20^2)
x - xo = 1000 [m]
1000 [m] = 1 [km]
And the runaway is 0.8 [km], therefore the jetplane needs 1 [km] to land. So the jetpalne can't land