Abook is resting on the table. forces are exerted
upward by the table
downward by the book
in equal and opposite directions
all of the above

tyler throws a baseball, which accidentally breaks a window in his neighbor's house. which of the following represents the action force?
the window breaking.
the baseball accelerating.
tyler's arm throwing the ball.

a 50 kg wagon is pulled with a 100 n force. if the force is increased to 200 n, how quickly will the wagon accelerate?
1 m/s2
2 m/s2
4 m/s2
25 m/s2

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?