Electric signals that travel back and forward
<h2>
Answer: 4.72 × 10⁷ s⁻¹ or Hz</h2><h3>
Explanation: </h3>
frequency = speed of light ÷ wavelength
frequency = (2.99 × 10⁸ m/s) ÷ (6.34 × 10⁸ m)
= 4.72 × 10⁷ s⁻¹ or Hz
Answer:Dynamic Equilibrium Examples. Any reaction will be in dynamic equilibrium if it's reversible and the rates of the forward and reverse reactions are equal. For example, say that you prepare a solution that is saturated with an aqueous solution of NaCl.
Explanation:
Copper is a heavy metal that can harm many people. This process of heavy metals building in your body is called bioaccumulation and the process of this building in the food chain is called biomagnification. Its hard to rid of this heavy metal because it is very dense, therefore, cannot breakdown in our bodies. Heavy metals get consumed by producers and then reach to the top of the pyramid (us) so we have the highest risk of getting diseases and so on. Make sure you explain that heavy metals get passed from industrial purposes where companies do not dispose of waste properly.
Source: Exam as well
Good luck!
