a. Diagrammatic question: 1. From the graph of velocity and time, answer the following questions: In which portion of the curve; (i) А is the velocity uniform? (ii) is velocity increasing? (iii) is velocity decreasing? O (iv) is acceleration zero? B velocity IC D time b. At which point does the body start to move and stop ? Modern Graded Science Class 9​

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes. t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

Phase changes are chemical changes. true or false