7. The graph above shows how the speed of a book changes as it slides across a table in a
straight line. Over what time interval is the
net force on the book in the opposite direc-
tion of the book's motion?
A. O s to 0.5 S
B. 0.5 s to 2.4 s
C. O s to 2.4 s
D. 2 s to 2.4 s

Which type of circuit is becoming more common in residential electrical design and construction? a. hazardous-area circuit b. three-phase circuit c. 480-volt circuit d. communication circuit

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery