Breathing techniques should be used

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?