A__________is a supernova explosion caused by the collapse of a massive star
A) type II supernova
B) type I supernova
C) type Ia supernova
D) type III supernova
A
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What is the x-component of a force vector of magnitude 27.0N directed at 73o above the negative y-axis?
A. +7.9N B. -7.9N C. -25.8N D. -8.3N E. +25.8N F. +8.3N
How are intermolecular forces and solubility related?
A) Solubility depends on the solvent's ability to overcome the intermolecular forces in a solid. B) Solubility depends on the solute's ability to overcome the intermolecular forces in the solvent. C) Solubility is a measure of how strong a solvent's intermolecular forces are. D) Solubility is a measure of how weak the intermolecular forces in the solute are. E) none of the above
Which of the following is not a carbohydrate?
a. Maltose b. Glycine c. Fructose d. Glucose
Two wires, each carrying current I, are antiparallel to each other. The two wires
A. repel each other. B. attract each other. C. are not affected by each other.