Saved if a moment vector is known in 3d space, how do we determine the resultant moment about a given axis? turn the moment into a linear force and apply it to the end of the axis multiple the moment vector by the length of the axis take the cross product of the moment vector and the axis vector dot product the moment vector with the unit vector of the axis

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Which sound characteristic is not affected by the relative motion of an object