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 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.
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 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
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