Compound microscopes focus light through to produce a magnified image.

Which subatomic particle has a negative charge

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?