Achemistry student is 159 cm tall and weighs 45.8 kg. what is her height in inches and weight in pounds?

Answer : The weight and height of student are, 100.989 pound and 62.646 inches respectively.

Explanation :

Conversion used for cm to inches are:

Conversion used for kg to pound are:

As we are given the weight of student 45.8 kg and height 159 cm.

Now we have to determine the weight and height of student in pound and inches respectively.

As, 1 cm height of student = 0.394 inches

So, 159 cm height of student =

and,

As, 1 kg weight of student = 2.205 pound

So, 45.8 kg weight of student =

Therefore, the weight and height of student are, 100.989 pound and 62.646 inches respectively.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.