1) A crane is able to lift 2.20 x 10 kg box. If the crane is able to raise this mass a distance of 66 feet by doing 4.34 x 105 kl in 55s, how much power has the crane provided?

the answer is d. 4

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also the more points you give the faster your questions get answered

tube or goog with be a great resource to with that question

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.

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the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.