Use cylindrical coordinates. Evaluate x dV E, where E is enclosed by the planes z = 0 and z = x + y + 6 and by the cylinders x2 + y2 = 1 and x2 + y2 = 9.

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since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

google dat sis

step-by-step explanation: