Which is the best analogy for scientific inquiry? a ladder, because there are specific steps a city, because there are many paths a maze, because there is one correct path a travel route, because there is a beginning and an end plz hurry i need the answer fast

With i really need the correct answer!

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.