Which of the following is NOT TRUE for an oscillating pendulum as shown in figure? A
The law involved is the law of conservation of energy.
B
Potential energies at the end points (A and D) are the same.
C
Two forms of energy are involved - potential and kinetic energy.
D
The potential energy is the lowest at the end points (A and D) and the kinetic energy is at the lowest at the mean position (E).

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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idk what is it? is this a question that you know the answer or u dont

option c: 1605.1 kj

the balanced chemical reaction for combustion of methane is as follows:

here, enthalpy formation of is -74.7 kj/mol, 0 kj/mol, -393.5 kj/mol and -241.82 kj/mol respectively.

the heat released or can be calculated as follow:

putting the values,

thus, heat released by combustion of 1 mol of methane is 802.54 kj/mol. thus, for 2 mol, heat released will be:

therefore, heat released by the combustion of 2 mol of methane is 1605.1 kj.