When liquids change to a solids, they
A) absorb energy.
B) release energy.
C) both of these
D) neither of these
Answer: B
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How are mass and weight different?
A. Weight is the amount of matter an object contains; mass is the type of matter an object is made of. B. Mass is the amount of matter an object contains; weight is how much mass an object contains. C. Weight is a measure of how much gravity pulls an object; mass is how much matter the object has. D. There is no difference; they are the same.
Viewed from afar, the transit of Earth would cause the Sun's brightness to dim by approximately
A) 10%. B) 5%. C) 1%. D) 0.00001%. E) 0.01%.
Four wave functions are given below. I. y(x, t) = 5sin(4x – 20t + 4) II. y(x, t) = 5sin(3x – 12t + 5) III. y(x, t) = 5cos(4x + 24t + 6) IV. y(x, t) = 14cos(2x – 8t + 3) Use this exhibit to answer the following question(s). Rank the wave functions in order of the magnitude of the wave speeds, from least to greatest
a. IV, II, I, III b. IV = II, I, III c. III, I, II, IV d. IV, I, II, III e. III, IV, II, I
The collective name for neutrons and protons is ______________
Fill in the blank(s) with correct word