Relate Mercury's scarps to the differentiation process
What will be an ideal response?
As Mercury was molten, the dense iron core formed from sinking iron and nickel. But smaller Mercury cooled off much faster than Earth, so its core cooled and started shrinking as it froze solid. This contraction caused the crust above to wrinkle and form the vast scarps that run across Mercury's crust.
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State Kirchhoff's junction theorem
What will be an ideal response?
What is the difference in meaning between the terms weather and climate?
A) Weather refers to local conditions, and climate refers to global conditions. B) Weather refers to short-term variations in conditions, and climate refers to long-term variations in conditions. C) Weather refers to small storms, and climate refers to large storms. D) Weather refers to wind and rain, and climate refers to processes like convection. E) There is no difference between weather and climate.
Traveling waves are created on a rope that has a mass per length 0.200 kg/m that is stretched with a tension of 400 N
If the end of the rope is moved up and down with simple harmonic motion with amplitude 30.0 cm and a period 1.40 s, how much work is done in one period of the motion? A) 133 J B) 400 J C) 267 J D) 11.3 J E) No work is done because the tension pulls outward along the rope, but the end of the rope moves perpendicular to the rope.
Potential: A proton that is initially at rest is accelerated through an electric potential difference of magnitude 500 V. What speed does the proton gain? (e = 1.60 × 10-19 C , mproton = 1.67 × 10-27 kg)
A. 2.2 × 105 m/s B. 3.1 × 105 m/s C. 9.6 × 105 m/s D. 1.1 × 105 m/s