A wave of infrared light has a speed of 6 m/s and a wavelength of 12 m what is the frequency of this wave

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.