If you were asked to describe metals and magnetism you could say (2 points)
A. nonpaired electrons spin in opposite directions in all metals, creating a magnetic field
B. metals are magnets because they have more electrons than nonmagnetic materials
C. metals can become magnetic if they have many spinning electrons that create magnetic fields
D. the electrons in some metals pair up to create a magnetic field
Answers: 2
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Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?
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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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The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
If you were asked to describe metals and magnetism you could say (2 points)
A. nonpaired electrons...
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