Arrange the atoms magnesium, fluorine, strontium, and sulfur in order of increasing ionization energy
strontium, magnesium, sulfur, fluorine
Physics & Space Science
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Today, which organisms have the highest biomass?
A) fungi B) plants C) animals D) microbes
Physics & Space Science
Given 3 capacitors: 4.00 ?F, 7.00 ?F, and 9.00 ?F; what is the equivalent capacity if they are connected in series?
What will be an ideal response?
Physics & Space Science
A very light cart holding a 300-N box is moved at constant velocity across a 15-m level surface. What is the total work done in the process?
a. 4500 J c. 20 J b. 1/20 J d. zero
Physics & Space Science
What evidence is there that supernovae really have occurred?
A) Crab Nebula B) supernova remnants C) existence of heavy radioactive elements in nature D) observations of the actual explosions E) All of the above.
Physics & Space Science