Which family in the periodic table has elements that are silvery and lustrous?
Alkali metals
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Answers: 2
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Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant
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Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?
Answers: 2
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Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.
Answers: 1
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