The two forces F1r and F2r shown

in Fig. 4–52a and b (looking down)

act on an 18.5-kg object on a

frictionless tabletop. If F1 = 10.2 N

and F2 = 16.0 N, find the net force

on the object and its acceleration for

(a) and (b).

You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static