Physics, 21.01.2021 19:40 sweetjosie
A student using an air track with two carts records the result of an inelastic collision. One cart has a mass of 0.2 kg and the other a mass of 0.4 kg. They moved off together at 0.2 m/s after the collision. The 0.4 kg cart was initially at rest.
–What was the final momentum of the carts?
–What was the initial velocity of the 0.2 kg cart?
–If the collision lasted 0.02 s, what force did each cart exert on the other?
Answers: 2
Physics, 21.06.2019 20:10
Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s
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Physics, 22.06.2019 06:40
Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?
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Physics, 22.06.2019 08:00
If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
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Physics, 22.06.2019 11:00
What is the measurement of how fast an object moves relative to a reference point?
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A student using an air track with two carts records the result of an inelastic collision. One cart h...
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