As earth rotates about it’s axis, it takes three hours for the united states to pass beneath a point above earth that is stationary relative to the sun. what is wrong with the following scheme? to travel from washington, d. c. to san francisco shoving very little fuel, simply ascend in a helicopter high over washington, d. c. and wait three hours until san francisco passes below
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All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction
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Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?
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Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack
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Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?
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As earth rotates about it’s axis, it takes three hours for the united states to pass beneath a point...
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