Physics, 26.01.2020 19:31 BobBball9126
1. a 1000-kg car moves as speed from 10 m/s to 30 m/s in 20 seconds. what is the average speed? what is the acceleration? what is the average force acting upon it? if the car turns along a circle at speed 5 m/s around a curve 30 meters in radius, how big the centripetal force is needed?
Answers: 1
Physics, 21.06.2019 16:20
Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors
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Physics, 21.06.2019 21:00
Which type of circuit is becoming more common in residential electrical design and construction? a. hazardous-area circuit b. three-phase circuit c. 480-volt circuit d. communication circuit
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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?
Answers: 2
Physics, 22.06.2019 23:00
Which wave is the result of amplification and produces a louder sound
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1. a 1000-kg car moves as speed from 10 m/s to 30 m/s in 20 seconds. what is the average speed? wha...
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