Most galaxies are spirals
Indicate whether the statement is true or false
FALSE
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Uniform Circular Motion: A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose radius is 100 m. The coefficient of static friction between the tires and the road is 0.35. At what speed will the car begin to skid sideways?
A. 9.3 m/s B. 24 m/s C. 34 m/s D. 35 m/s E. 19 m/s
What happens to the image in a pinhole camera if the screen is moved closer to the pinhole?
A. The image decreases in size. B. The image increases in size. C. The image remains the same size. D. The image is blurry
The adoption of very similar streamlined body shapes by both sharks and dolphins provides evidence for
A) cross-breeding B) convergent evolution C) genetic mutations D) life originating in the oceans
The resistance of a conducting material depends on its
a. composition b. length c. diameter d. temperature e. all of the above