10. Someone takes 11 minutes to walk up a hill 120m high. His weight is 550N. (a) How much work did he do in climbing the hill?

(b) How many seconds did he take to climb the hill?

(c) What power is developed by his muscles as he climbs?

(d) If he runs up the hill his muscles can exert 500 Watts. How long will it take him to get to the top of the hill?

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

i think the answer would be reserve.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form