Answer: seen below.
Explanation:
Firstly we need to remember what exothermic reaction is in thermodynamics. exothermic reaction describes a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light, sound, or electricity.
In this scenario, due to the heating up nature noticed by the ring during breaking shows that energy is being released to the surrounding in the form of heat which suggest it being an exothermic reaction.
It took 50 joules to push a crate 2.5 meters. With what force was the crate pushed?
<span>the acceleration of an object is depedent upon two variables
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p=3.0D contact lens is needed to correct his distant vision.
The person is suffering from myopia and hence need a concave lens to correct the defect. The lens should be such that an object at infinity must form its image at the far point.
Hence,f= -32.3cm
= -0.323m
we can define the power of the lens as the reciprocal of its focal length in metre.
The power of lens is the ability to converge and diverge rays of light.
The power of the lens can be obtained as:
p= 1/f
p=1/(-0.323)
p=3.0D
Thus,the power is 3.0D to correct his distant vision.
learn more about power of lens from here: brainly.com/question/17166887
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