A(b + 25.0) g mass is hung on a spring. as a result, the spring stretches (8.50 a) cm. if the object is then pulled an additional 3.0 cm downward and released, what is the period of the resulting oscillation? give your answer in seconds with 3 significant figures. a = 13 b = 427

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 !

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car