Answer:
C
technically B too but youre teachers not that smart so there you go
Answer:
Depends on the capacity of battery. Mostly our phones flashlight can be used up to 8 to 10hrs continuosly
Explanation:
Capacity of the battery is level to which battery is charged, & amount of current drawn by the flashlight, you can calculate the answer yourself if u know the capacity of that light.
Moreover you can calculate this by using equation,
E =Pt
So, for time
t=E/P
Batteries are rated in Amp hours, like 10 amp hours will supply us 1 amp for 10 hours
2 amps will give us 5 hours
to learn more about lasting of flashlight,
brainly.com/question/13869629?referrer=searchResults
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Exothermic and endothermic
Explanation:
A chemical reaction occurs when two or more elements or compounds react together, forming new elements/compounds.
A chemical reaction can be classified into two types, depending on the direction in which energy flows.
The two types are:
- Exothermic: an exothermic reaction is a reaction in which the energy of the reactants is more than the energy of the products. This means that during the reaction, part of the energy is been released out of the system.
- Endothermic: an endothermic reaction is a reaction in which the energy of the products is more than the energy of the reactants. This means that during the reaction, energy has been absorbed by the system
Learn more about endothermic/exothermic reactions:
brainly.com/question/10567109
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