The force that keeps your feet from sliding as you walk is
a. centripetal force.
b. weight.
c. kinetic friction.
d. static friction.
e. none of the above.
d
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Radioactive Decay: The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is the decay constant of this sample?
Fill in the blank(s) with the appropriate word(s).
To achieve a low equivalent resistance for a pair of resistors, connect them in
A) series. B) parallel. C) either of these
A car travels at a steady 40.0 m/s around a horizontal curve of radius 200 m. What is the minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at this speed without sliding?
A) 1.23 B) 0.952 C) 0.816 D) 0.662 E) 0.736
In the formation of a river delta, why is it that coarser material is deposited first, followed by medium and finer material farther out?
What will be an ideal response?