You fire a bullet into a 2 kg wooden block that is hanging at the bottom of a pendulum. When the
bullet strikes the block, the pendulum swings upward. The bullet has a mass of 0.02 kg and strikes
the block with a speed of 300 m/s.
a. What is the speed of the block and bullet when they first start moving together? (8 points)
b. What is the maximum height reached by the pendulum? (7 points)
Answers: 1
Physics, 22.06.2019 03:50, Jasten
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 θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?
Answers: 1
Physics, 22.06.2019 04:30, AShevel6767
In a system, when potential energy decreases, then entropy also decreases. true false
Answers: 3
Physics, 22.06.2019 05:30, trevorhenyan51
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?
Answers: 2
You fire a bullet into a 2 kg wooden block that is hanging at the bottom of a pendulum. When the
bu...
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