2 decimeters expressed in millimeters

How might burning fossil fuels affect the composition of gases in the atmosphere?

Which factors in the earth relationship to the sun make life on earth possible

The spreading of waves behind an aperture is more for long wavelengths and less for short wavelengths. Less for long wavelengths and more for short wavelengths. Which is true and why?

Which element is stable and nonreactive? A. Chlorine (CI) B. Sulfur (S) C. Calcium (Ca) D. Krypton (Kr)

The sunlight shines behind they raining cloud. What role does the sun play in the formation of rain? why?

A tube, open at only one end, is cut into two shorter (nonequal) lengths. The piece that is open at both ends has a fundamental frequency of 422 Hz, while the piece open only at one end has a fundamental frequency of 666 Hz.

Table tennis the path of a table-tennis ball after being hit and hitting the surface of the table can be modeled by the function h=-4.9t (t-0.42) where h is the height in meters above the table and t is the time in seconds.

A coat rack weighs 65.0 lbs when it is filled with winter coats and 40.0 lbs when it is empty. The base of the coat rack has an area of 452.4 in2.

An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time?

How was helium first discovered? mining of the radioactive element uranium using spectral analysis of the Suns' emission spectra o hubble obtaining samples from explosions off the surface of the sun deep sea mining off the coast of Texas