A runner maintains constant acceleration after starting from rest as she runs a distance of 60.0 m. The runner's speed at the end of the 60.0 m is 9.00 m/s. How much time did it take the runner to complete the 60.0 m distance?
A) 6.67 s
B) 15.0 s
C) 9.80 s
D) 10.2 s
E) 13.3 s
A
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A uniformly charged rod (length = 2.0 m, charge per unit length = 5.0 nC/m) is bent to form one quadrant of a circle. What is the magnitude of the electric field at the center of the circle?
a. 62 N/C b. 56 N/C c. 50 N/C d. 44 N/C e. 25 N/C
Which term is used to describe a navigational menu that is collapsed or hidden by default?
A. hamburger B. sandwich C. pizza D. sushi
For a particular spring, the spring constant
A. Increases as the spring is stretched B. Increases as the spring is compressed C. Decreases as the spring is compressed D. Is the same regardless of stretching or compressing
If a metal sheet containing a tiny hole is heated (without damaging it) and therefore expands, what happens to the angular location of the first-order diffraction maximum?
A) It moves toward the centerline. B) It moves away from the centerline. C) It doesn't change.