The melting points of two alloys used in formulating solder were investigated by melting 21 samples of each material. The researchers want to investigate the claim the claim that the alloys have different melting points. Assume that both populations are normally distributed and have the same standard deviation. What kind of hypothesis test should the researchers do
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A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you
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Which situation will produce the greatest change of momentum
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The melting points of two alloys used in formulating solder were investigated by melting 21 samples...
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