Physics, 26.10.2019 16:43 ammullims822
Unknown elements substance appearance melting point (oc) electrical conductivity after pounding with hammer a black powder 3500 c none still powder b reddish pellet 1360o c high flattens a little c shiny silver strip 1200o c high retains shape d dull gray pellet 620o c high flattens a lot in a lab experiment, students had four samples of elements. they made observations about the appearance of each sample, then proceeded to conduct three separate experiments. in the first, they found the melting point of each by holding small samples in a bunsen burner with a temperature probe. in the second, they held a conductivity probe to two separate sections of the sample. in the final test, they took a small sample and hit it with a hammer. which element is least likely to be metallic? a) a b) b c) c d) d
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Physics, 22.06.2019 05:00
Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?
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Physics, 22.06.2019 10:30
You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.
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Physics, 22.06.2019 16:30
Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?
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Unknown elements substance appearance melting point (oc) electrical conductivity after pounding with...
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