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lbvjy [14]
3 years ago
11

Which statement best describes the difference between endothermic and exothermic reactions?

Physics
1 answer:
Lorico [155]3 years ago
3 0

Answer:

The correct answer would be "They are opposites because endothermic reactions require energy and exothermic reactions release energy".

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What are used by organisms for long-term energy storage
kifflom [539]

Answer:

Fatty acids.

Explanation:

-Long term energy storage is stored in the form of triglycerides .

-They are efficient storing molecules. They are more efficient thatn glycogen(cabohydrates).

-Fatty acids are more calori dense hence them being ideal for long term energy storage.

4 0
4 years ago
In a car lift, compressed air exerts a force on a piston with a radius of 2.62 cm. This pressure is transmitted to a second pist
marin [14]

Answer:

847.45 N

Explanation:

F₁=force of exerted by smaller piston

F₂=force of exerted by larger piston=1.44×10⁴ N

A₁=Area of smaller piston= 2.62 cm =0.0265 m

A₂=Area of larger piston= 10.8 cm =0.108 m

Pressure exerted by both the pistons will be equal

P_1=P_2\\\Rightarrow \frac{F_1}{A_1}=\frac{F_2}{A_2}\\\Rightarrow F_1=\frac{F_2}{A_2} A_1\\\Rightarrow F_1=\frac{14400}{\pi\times  0.108^2}\pi\times  0.0262^2\\\Rightarrow F_1=847.45\ N

Hence, force exerted to lift a 14400 N car is 847.45 N

8 0
4 years ago
A space station moves in a circular orbit around Earth. Which of the following statements describes the centripetal force acting
drek231 [11]
C.
because centripetal means that force only acts in the center of body in motion
8 0
3 years ago
Under what condition will the enthalpy change of a process equal the amount of heat transferred into or out of the system?
olga55 [171]

Answer:

At constant pressure

Explanation:

Enthalpy of a system may be defined as the system's internal energy in addition to the product of the volume and pressure of the system.

It can be regarded as the system's capacity of heat transfer and to do non- mechanical work.

The enthalpy of the system at constant pressure gives the amount of heat or energy that is either absorbed by the system or released by the system.

3 0
3 years ago
BEST ANSWER GETS BRAINLIEST! WORTH LOTS OF POINTS!!
Lelechka [254]
The energy is being converted to the water yet it isn't rising because the water is absorbing the heat not reflecting it. I think this is correct but I'm not sure. I would like to know the answer if you find out though.
6 0
3 years ago
Read 2 more answers
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