What electric charge is characteristic for an ion of Cl?
a. 7+
b. 0
c. 1–
d. 1+
c
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Significant Figures: What is the quotient of 2.43 ÷ 4.561 expressed to the correct number of significant figures?
A. 5.3278 × 10-1 B. 5.328 × 10-1 C. 5.33 × 10-1 D. 5.3 × 10-1
According to Shapley, globular clusters were more common toward constellation Aquarius
Indicate whether the statement is true or false
Two cylinders made of the same material roll down a plane inclined at an angle ? with the horizontal. Each travels the same distance. The radius of cylinder B is twice the radius of cylinder A. In what order do they reach the bottom?
A. A reaches the bottom first because it has the greater acceleration. B. A reaches the bottom first because it has a smaller rotatinal inertia. C. B reaches the bottom first because is experiences a larger torque. D. B reaches the bottom first because it travels a larger distance in one rotation. E. They both reach the bottom at the same time, because each has the same linear acceleration.
Glaciers will retreat when the amount of accumulation
A) is less than the amount of ablation each year. B) exceeds the amount of ablation each year. C) is equal to the amount of ablation.