Two of the three tuning forks have known frequencies. when a 610 hz fork and the unknown fork are struck together, four beats per second are heard. when a 605 hz fork is struck with the unknown fork, beats are produced that are too numerous to count accurately. what is the frequency of the unknown fork?
614
606

In a system, when potential energy decreases, then entropy also decreases. true false

Give an example in which the electrical energy changes to light energy

Which of these statements best explains how the hydrosphere interacts with the atmosphere to affect global climate? mountains block rain clouds and cause changes in global rainfall and evaporation. humans burn fossil fuels to produce greenhouse gases which cause global warming. humans cut down trees which affects the amount of oxygen in different parts of the globe. greenhouse gases, like carbon dioxide, dissolve in oceans and prevent global warming.