Sound waves travel in air at room temperature with a speed of 343 m/s. The lowest frequency sound we can hear is 20.0 Hz. Find the corresponding wavelength

Answerapplying a direct current to a non magnetic material in order to create a electromagnetic field; plz check first good luck;

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips. 

We can infer that star y is closer but other factors must be considered include the heat of the star, the mass, and the brightness of the star. even though star x seems dimmer it may just be less bright or contains less heat.