10) A helicopter rotor blade can be considered a long thin rod, as shown in Fig. 8-46. (a) If each of the three rotor helicopter blades is 3.75 m long and has a mass of 160 kg, calculate the moment of inertia of the three rotor
blades about the axis of rotation. (b) How much torque must the motor apply to bring the blades up to a speed
of 5.0 rev/s in 8.0 s?

are you like autistic or something?

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the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

c) up is the direction the magnetic force is acting on the charge.