A given net force accelerates a cart along a straight-line path. If the mass of the cart somehow doubles, its acceleration
A. doubles.
B. stays the same.
C. quadruples.
D. is half.
Answer: D
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Determine whether a rock formed at the following pressures and temperatures typically would be sedimentary, metamorphic, or igneous. If metamorphic, determine whether the rock would be considered low-, medium-, or high-grade
? Pressure = 1 kb, Temperature = 700 °C ? Pressure = 2 kb, Temperature = 100 °C ? Pressure = 3 kb, Temperature = 300 °C ? Pressure = 4 kb, Temperature = 500 °C ? Pressure = 6 kb, Temperature = 1100 °C ? Pressure = 7 kb, Temperature = 1000 °C What will be an ideal response?
The temperature of the tropopause
a. ?is close to the temperature at Earth's surface. b. ?is much colder than the temperature at Earth's surface. c. ?has never been measured. d. ?is much warmer than the temperature at Earth's surface. e. ?is nearly the same as the sun's temperature.
What does ozone in the stratosphere protect us from?
A. sunlight B. infrared radiation C. x-ray radiation D. ultraviolet (UV) radiation E. lightning
Which of the below is not found in loess?
A) Jointlike vertical cleavage planes B) Large amounts of sand C) Angular individual grains D) A buff coloration E) Uniformly-sized fine grain particles