Acentigrade and a fahrenheit thermometer are dipped in boiling water. the water temperature is lowered until the fahrenheit thermometer registers 140°. what is the fall in temperature as registered by the centigrade thermometer? (a) 80° (b) 60° (c) 40° (d) 30°

A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box

Find the vertex(use the completing the square method), findthe x- and y-intercepts, and sketch the graph offunction. y = 2x2 + 4x - 1

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.