2:Posttest 2 Motion in a Plane 8. You walk 45 m to the north, then turn 90° to your right and walk another 45 m. How far are you from where you originally started?

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter