Amy leaves her home at 9: 00 am and travels east to sandra’s house, 1,080 m away, and arrives at 9: 09. she waits at sandra’s house for 6 min and then heads further east to jackie’s house 945 m away from sandra’s house. she arrives at jackie’s house at 9: 24. she immediately heads back home after she arrives at jackie’s (jackie wasn’t home). she arrives back at home in 11 min and 15s.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

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.

Organ systems work to maintain homeostasis by creating energy to allow systems to function, releasing hormones to create or end body reactions, and eliminating waste to prevent illness. t or f