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Physics, 22.06.2019 01:30
Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33
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Physics, 22.06.2019 03:50
The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle ΞΈ=0β with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle ΞΈ=30β with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle ΞΈ=45β with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle ΞΈ=60β with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle ΞΈ=90β with the plane of polarization?
Answers: 1
Physics, 22.06.2019 14:00
What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration
Answers: 1
How much will be the net displacement if a car travels 6 km east and then travels 14 km west
4 poin...
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