9 results

Scinece, Physics

A boy is throwing a stone from the top of a building. It takes projectile motion and returns to the ground. How to calculate the height of buiding?

Physical Scinece

A Measurement is defined as_. a. system of prefixes b. the distance between two points c. an exact quantity people agree to use for comparison d. the interval between two events


an earth satellite in an elliptical orbit moves with a) faster speed as it age b) none of the above c) constant speed d) slower speed as it age


In general, how does the characteristic minerals composition of a light colored igneous rock differ thst of a dark colored igneous rock?


While doing a scinece project with my daughter we attempted to melt two sugar cubes. We poured alcohol on one sugar cube and vinegar on the other. The sugar cube with the alcohol melted at a faster speed. Why was this?


chemicsl fertilizers stimulate plant growth;but if the concentration is too high,they amy damage roots.what precautions concering chemicalfertilizersmust a gardener take? a)apply as much as possible without damagingroots. b)do not apply chemical fertilizers c)give the plants ...


i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere =average air pressure at sea leve under ...


In the United States, rank order the users of energy from smallest to biggest: Smallest Biggest a) industry home transportation b) transportation industry homes c) homes industry transportation d) homes transportation industry e) transportation homes industry

Ionic compounds Scinece

3. What happens to the change on individual ions when they form ions? 11. Write the names of the two ions in each of the following compounds. (C) Na2O (E) Na3PO4 (G) NH4OH (H) Ca (NO3)2 8. Use the tables of metals, non-metals, and polyatomic ions and the Periodic table to name...


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