A car enters a 300-m radius flat curve on a rainy day when the coefficient of static friction between its tires and the road is 0.600. What is the maximum speed which the car can travel around the curve without sliding?
A)
29.6 m/s
B)
33.1 m/s
C)
24.8 m/s
D)
42.0 m/s
E)
37.9 m/s
D
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Which of the following is a solution to the wave equation, 
?
A.
B.
C.
D.
E.
In quantum theory, "entanglement" refers to
A) two particles sharing a single quantum field (EM field or matter field) with each other. B) the fact that a particle can get trapped in the electric field of another particle. C) the spreading out of a single particle's EM field or matter field over a region of space. D) the communication that occurs when one particle sends an electromagnetic wave to another. E) the forces that two particles can exert on each other even when they are separated.
An air-track cart is attached to a spring and completes one oscillation every 5.67 s. At t = 0 s the cart is released at a distance of 0.250 m from its equilibrium position. What is the position of the cart when t = 29.6 s?
A) x = 0.0460 m B) x = 0.210 m C) x = 0.218 m D) x = 0.342 m E) x = -0.218 m
Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume that they all gather in one place and climb to the top of 2 m high ladders. The center of mass of the Earth (mE = 5.90 1024 kg) is then displaced
a. 0 m. b. 1.84 × 10^?23 m. c. 1.84 × 10^?14 m. d. 1.80 × 10^?13 m. e. 2 m.