With the travel report file open, on the analysis tab, in the extract group, select direct to open the direct extraction window to find the number of records that occurred on and before january 15th, 2015 and involved at least 7,500 air miles or amounts of $5,000 or more.

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?

Which component of the earth’s atmosphere is decreased due to photosynthesis?