A spectrophotometer measures the transmittance or the absorbance. True or False

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

If the new moon happens on january 15th, what shape will it be on february 6th?