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Hatshy [7]
2 years ago
10

PLZZZ HELP ME ASAP!!!! WILL GIVE BRAINLIEST AND EXTRA POINTS!! IM DESPERATE!!

Physics
2 answers:
Law Incorporation [45]2 years ago
7 0

a. Combustion is the answer

umka2103 [35]2 years ago
5 0

Answer:

exothermic

Explanation:

The general equation for an exothermic reaction is: Reactants → Products + Energy. Note: ΔH represents the change in energy. If the energy produced in an exothermic reaction is released as heat, it results in a rise in temperature.

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A certain parallel-plate capacitor is filled with a dielectric for which Κ = 5.5 .The area of each plate is 0.034 m2 , and the p
Nesterboy [21]

Answer:

The maximum energy that can be stored in the capacitor is  6.62 x 10⁻⁵ J

Explanation:

Given that,

dielectric constant k = 5.5

the area of each plate, A = 0.034 m²

separating distance, d =  2.0 mm = 2 x 10⁻³ m

magnitude of the electric field =  200 kN/C

Capacitance of the capacitor is calculated as follows;

C = \frac{k \epsilon A}{d} = \frac{5.5*8.85*10^{-12}*0.034}{2*10^{-3}} = 8.275 *10^{-10} \ F

Maximum potential difference:

V = E x d

V = 200000 x 2 x 10⁻³ = 400 V

Maximum energy that can be stored in the capacitor:

E = ¹/₂CV²

E = ¹/₂ x 8.275 x 10⁻¹⁰ x (400)²

E = 6.62 x 10⁻⁵ J

Therefore, the maximum energy that can be stored in the capacitor is  6.62 x 10⁻⁵ J

4 0
3 years ago
Which observation is the best evidence that some colors of visible light are
Effectus [21]

Answer:

id say D

Explanation:

because its the only answer that has to do with colors and visable light

but A and B also have to do with eachother so i feel like it could be with one of those but it def isnt C

I am sorry if i am wrong, let me know tho!

8 0
3 years ago
Read 2 more answers
Plz help it’s urgent...
vfiekz [6]
Is that english???????
3 0
3 years ago
Calculate the power of a train that uses 2MJ of chemical energy in 4<br> seconds.
nadya68 [22]

Answer:

500 kW

Explanation:

Given that,

Energy of the train, E = 2 MJ = 2×10⁶ J

Time, t = 4 seconds

We need to find the power of the train. We know that,

Power = energy/time

So,

P=\dfrac{2\times 10^6}{4}\\\\P=500000\ W\\\\or\\\\P=500\ kW

So, the power of the train is equal to 500 kW.

6 0
2 years ago
For the reaction shown below, which statement is correct? Ba(OH)2 + 8H20 + 2NH4NO3 + heat ?10H2O + 2NH3 + Ba(NO3)2
adell [148]
I believe the correct answer is B
7 0
3 years ago
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