Which of the following terms are needed to completely describe speed? check all that apply. a. units b. direction c. number d. mass

Which of these metals are magnetic?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative

Which color of light has a longer wavelength than yellow? a. red b. blue c. green d. violet