Why does a higher temperature cause the viscosity of a magma to decrease? A. in minerals that form at high heat, silica tetrahedra share fewer (or no) links with other tetrahedra, leading to fluid melts
B. heat increases bonding in a magma causing the atoms to resist moving past one another
C. heat causes the magma to dissolve in water, meaning it can flow easily like a river of water

Why does the input force have to be greater than the force needed to lift the bale?

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s