Calculator the % composition of nitrogen (N) for the fertilizer ammonium nitrogen NH4NO3 to the nearest percent ?

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

Which of the following isotopes has the same number of neutrons as phosphorus-31?

The earth's surface is (science) a: studied using seismic waves b: constantly changing over time c: only studied indirectly d: the same today as million of years