________ is the concept that the universe looks the same in all directions
Fill in the blank(s) with correct word
Isotropy
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The intensity of a sound wave is a measure of:
1.energy/area 2.force/time 3.momentum change/time 4.power/time 5.pressure difference/time 6.None of the above.
How much more energy would be required to bring the entire world up to the average per capita U.S. energy use? Recall that world average energy use is 57 GJ per capita and the U.S. average energy use is 300 GJ per capita
What will be an ideal response?
When one travels east while passing over the International Date Line,
a. the date is decreased one day. b. the time is decreased one hour. c. the time is advanced one hour. d. the date is advanced one day. e. none of these occurs.
Friction: A policeman investigating an accident measures the skid marks left by a car on the horizontal road. He determines that the distance between the point that the driver slammed on the brakes (thereby locking the wheels) and the point where the car came to a stop was 28.0 m. From a reference manual he determines that the coefficient of kinetic friction between the tires and the road under the prevailing conditions was 0.300. How fast was the car going when the driver applied the brakes?
A. 10.7 m/s B. 12.8 m/s C. 21.4 m/s D. 32.9 m/s E. 45.7 m/s