An artillery shell is fired with an initial velocity of 300 m/s at 55.0° above the horizontal. It explodes on a mountainside 42.0 s after firing. If x is horizontal and y vertical, find the (x, y) coordinates where the shell explodes.
What will be an ideal response?
7.22 km, 1.68 km
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Most polymers that are solid at room temperature do not mix with other polymers even when melted, because of the very high ___________of mixing.
Fill in the blank(s) with the appropriate word(s).
You have 1 kg of liquid water and 1 kg of steam. If you add 100 J of energy to each, which would experience the greatest increase in temperature?
1.the water 2.the steam 3.They will both experience the same increase in temperature. 4.It cannot be determined because it depends on the actual temperature of the water and steam as well as the pressure.
Where are volcanoes most common?
a. subduction zones b. transform boundaries c. folded mountain ranges d. continental basins and ranges e. plates pushing against one another
Is it possible for an object to have an acceleration of zero and a numerical value for velocity? Justify your answer with an example