Uniform Circular Motion: The curved section of a horizontal highway is a circular unbanked arc of radius 740 m. If the coefficient of static friction between this roadway and typical tires is 0.40, what would be the maximum safe driving speed for this horizontal curved section of highway?
A. 54 m/s
B. 52 m/s
C. 50 m/s
D. 48 m/s
E. 46 m/s
Answer: A
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A 5.0-kg block is attached to an ideal massless spring whose spring constant is 125 N/m. The block is pulled from its equilibrium position at x = 0.00 m to a position at x = +0.687 m and is released from rest
The block then executes lightly damped oscillation along the x-axis, and the damping force is proportional to the velocity. When the block first returns to x = 0.00 m, its x component of velocity is -2.0 m/s and its x component of acceleration is +5.6 m/s2. (a) What is the magnitude of the acceleration of the block upon release at x = +0.687 m. (b) Find the damping constant b.
The oldest Earth rocks so far discovered and dated are _____
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Which of these is stated properly?
a. "The temperature of liquid nitrogen is 77 Kelvin.". b. "The temperature of liquid nitrogen is 77 Kelvins.". c. "The temperature of liquid nitrogen is 77 degrees Kelvin.". d. "The temperature of liquid nitrogen is 77 Kelvin degrees.".
If you double the mass of fusion material in a hydrogen bomb, you quadruple the amount of energy generated
Indicate whether the statement is true or false