How did the volcano Mt. St. Helens form? A. This is a random hotspot on the earth where magma comes to the surface, it is
not at any plate boundary
B. This is a divergent boundary and plates are moving apart here to form volcanoes
and mountains
C. ML St. Helens is at a continental-continental convergent boundary and there are
no trenches here
D. Subduction a an oceanic continental convergent boundary caused a mountain
range to form and magma to come to the surface

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?