Example What are the x- and y-components of vector in the Figure below?
(a)The magnitude of the vector is 3 m, and the angle a =
(b) The magnitude of the vector is 4.5 m, and the angle ß = 37°
(a)
(b)
45°
D. (+)
E, (+)
ar
E
D(-)
D
Op = (360° - a)= (360° – 45°) = 315°
Ce = (90°-B) = (90° - 37°) = 53°

Why does the input force have to be greater than the force needed to lift the bale?

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?