A toy airplane is flying in a straight horizontal (parallel to the ground) path with a speed of vi=33 m/s. Suddenly, the airplane's engines stop (at t=0). Using an x axis that is horizontal and along the plane's original velocity and a y axis that is vertical with positive away from the ground, the airplane now has an acceleration given by the following expressions: ax(t)=−t2/C ay(t)=−g[1−vx(t)/vi] where C=2690s4/m and vx(t) is the x component of the airplane's velocity. The airplane crashes 34.87 seconds after the engines stop.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

What are igneous intrusions and extrusions

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !