Which of the following statements about scientific theories and laws is correct?
Answer: Laws explain HOW the natural world works the way it does, and theories explain WHY it works the way it does
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________ galaxies contain mostly Population II stars; while ________ galaxies contain both Population I and Population II stars.
A. Elliptical; spiral B. Spiral; elliptical C. Irregular; elliptical D. Irregular; spiral
What is the total number of individual atoms in a water molecule?
A) one B) two C) three D) four E) none
An object that is 47.5 cm tall forms an image that is 38.6 cm tall and 14.8 cm from a spherical mirror. How far is the object from the mirror?
A) 124 cm B) 47.6 cm C) 18.2 cm D) 12.0 cm
Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up. Angular momentum is conserved
Indicate whether the statement is true or false