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°

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?