Starting from the front door of your ranch house, you walk 60.0 m due east to your windmill, and then you turn around and slowly walk 35.0 m west to a bench where you sit and watch the sunrise. it takes you 30.0 s to walk from your house to the windmill and then 48.0 s to walk from the windmill to the bench.

=force × distance a. work b. velocity c. pressure d. momentum

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.