Physics, 23.10.2019 16:00, pandamaknae2003
Afan rotating with an initial angular velocity of 1000 rev/min is switched off. in 2 seconds, the angular velocity decreases to 200 rev/min. assuming the angular acceleration is constant, how many revolutions does the blade undergo during this time.
a) 10
b) 20
c) 100
d) 125
e) 1200
Answers: 3
Physics, 21.06.2019 13:00, lucygperez4099
Jake has a nine month old son. how can he build his self esteem
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Physics, 22.06.2019 06:40, PerfectMagZ
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 12:40, live4dramaoy0yf9
Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity
Answers: 2
Afan rotating with an initial angular velocity of 1000 rev/min is switched off. in 2 seconds, the an...
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