What type of eruption does a shield volcano have?
What will be an ideal response?
Gentle
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The proton-proton chain
a. combines two hydrogen nuclei to produce a single helium nucleus and energy. b. splits a helium nucleus to produce 4 hydrogen nuclei and energy. c. is the mechanism that increases the temperature between the photosphere and corona of the sun. d. is the interactions between protons in Earth's atmosphere that produces auroras. e. produces energy in the core of the sun in the form of gamma-rays, positrons, and neutrinos.
About 1350 W/m2 of electromagnetic energy reaches the upper atmosphere of the earth from the sun, which is 1.5 × 1011 m away. Use this information to estimate the average power output of the sun
A) 1 × 1026 W B) 2 × 1026 W C) 3 × 1026 W D) 4 × 1026 W
During a period of high solar activity, the corona
A) becomes smooth and even. B) cools almost to the temperature of the photosphere. C) disappears. D) shrinks to half its normal size. E) is more irregular.
A car enters a level, unbanked semi-circular hairpin turn of 300 m radius at a speed of 40 m/s. The coefficient of friction between the tires and the road is ? = 0.25 . If the car maintains a constant speed of 40 m/s, it will
a. attempt to dig into the road surface. b. tend to veer toward the center of the semicircle. c. arrive safely at the end of the semicircle. d. tend to veer toward the outside of the circle. e. veer toward the center for the first quarter-circle, then veer toward the outside for the second quarter-circle.