A mass that weighs 8 lb stretches a spring 6 in. The system is acted on by an external force of 8sin(8t). If the mass is pulled down 3 in and then released, determine the position of the mass at any time t. Assume that the u-axis is directed downwards and g=32 fts2. Express your answer in as a linear combination of sin(at)and cos(at).

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

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 !