Acceleration: An auto manufacturer advertises that their car can go "from zero to sixty in eight seconds." This is a description of what characteristic of the car's motion?
A. average speed
B. instantaneous speed
C. average acceleration
D. instantaneous acceleration
E. displacement
Answer: C
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The physical properties of a regular copolymer are normally a weighted _____________of the physical properties of the component polymers.
Fill in the blank(s) with the appropriate word(s).
A temperature of 100 K equals which of the following?
a. 373°C b. 173°C c. –279°F d. 279°F e. –639°F
A 0.650-kg object is swung in a circular path and in a vertical plane on a 0.500-m-length string. If the angular speed at the bottom is 8.00 rad/s, what is the tension in the string when the object is at the bottom of the circle?
a. 27.2 N b. 20.8 N c. 14.4 N d. 6.37 N
The rather simple idea that, unless disturbed, younger sedimentary layers overlie older layers, is referred to as the principle of
A) original horizontality. B) uniformitarianism. C) faunal succession. D) superposition.