George is playing the piano. the note A5 has a frequency of 880 hertz. if the speed of sound at 30 degrees c is 350 meters/second, what is the wavelength of this note at that temperature? Enter the variable symbol for the quantity you need to find. Use your keyboard and the keypad to enter your answer. then click Done.

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

What is the relationship between the direction of motion of the balloon and the wind currents