Answer:
2,400
Explanation:
Because when we use the formula D=st and we plug in our numbers it should look like D=8x300 . And when we do the math of multiplication it gives us the answer of 2,400 .
Hoped I helped <3
Sleepy~
Answer:
2.3 × 10⁻²⁰ N, attractive
Explanation:
An electron has a negative charge and a proton has a positive charge. Opposite charges attract each other. We can calculate the magnitude of this attractive force (F) using Coulomb's law.
where,
k: Coulomb's constant
q: charges
r: distance
The modulus of the force is 2.3 × 10⁻²⁰ N.
Answer:
Explanation:
Kirchoff's current law: It states that the total current entering at a junction is equal to the total current leaving at the junction. It isbased on conservation of charge.
As two current i1 and i2 is entering at the junction and i3 is leaving, so the current in forth wire is
i4 = i1 + i2 - i3
Explanation:
Exothermic reaction is defined as the reaction in which release of heat takes place. This also means that in an exothermic reaction, bond energies of reactants is less than the bond energies of products.
Hence, difference between the energies between the reactants and products releases as heat and therefore, enthalpy of the system will decrease.
Whereas in an endothermic reaction, heat is supplied from outside and absorbed by the reactant molecules. Hence, enthalpy of the system increases.
As water acts as a coolent and when fuel rods in a nuclear reactor are immersed in it then heat created by coolent is absorbed by water and then it changes into steam.
Since, absorption of heat occurs in the nuclear reactor. Therefore, it is an endothermic reaction.
Thus, we can conclude that nuclear reactors use fuel rods to heat water and generate steam. This process is endothermic.
It's a chemical chemical change
