While fishing on a lake, a fisherman notices ripples 0.32 m apart, and they are traveling with a speed of 1.2 m/s. When the ripples hit his bobber, what frequency
will it bob up and down with?

Please answer ASAP Will do brainlest

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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 !