Hamid is viewing an image of a bird produced by a set of concave lenses. What must be true about the image? It is a virtual image.
It is upside down.
It is larger than the actual bird,
It is capable of being projected.

What is a subatomic particle with a negative charge and very little mass?

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

A10n falling encounters 10n of air resistance (upward force). the net force on the object is: