The equation for energy of a photon is E=hv where v equals frequency and h equals the Planck constant (6.626X10^-34). So since you've been given frequency you can just plug in frequency to find the total energy in joules.
E=(3.55X10^17)(6.626X10^-34)
E=2.35223X10^-16
Not sure how many significant figures you needed. Hope this helped.
Answer:
Chopping wood logs
A pot of water o a grate over a burning fire
Explanation:
Physical change is easily reversible. Burning/combustion is a chemical process where substances react rapidly with oxygen: this is usually irreversible.
The marshmallow, roasted food and burned wood all undergo combustion and hence are tagged chemical changes.
Explanation:
The phase development of the eutectic reaction includes the equilibrium point of Liquid, crystals of A, and crystals of B
<h3>What is the Eutectic Reaction?</h3>
This refers to the three-phase reaction that occurs when a liquid forms after cooling.
Hence, we can see that the hypo eutectic reaction occurs when there is a homogenous mixture of substances that undergoes a reaction where it melts and solidifies.
The hyper eutectic reaction has to do with the metallic alloy that contains a composition that has exceeded its eutectic point.
Read more about eutectic reactions here:
brainly.com/question/23160517
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