Physics, 31.03.2020 03:03 balancingmist1954
Mileposts mark distance along a highway. A car traveled from milepost 15 to milepost 185. To calculate the average speed of the car, what additional information is necessary?
the total length of the highway
the initial and final speeds of the car
the time of the journey
the minimum and maximum speeds of the car
Answers: 3
Physics, 22.06.2019 00:30
Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest
Answers: 2
Physics, 22.06.2019 05:00
Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
Answers: 3
Physics, 22.06.2019 05:40
An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
Answers: 1
Mileposts mark distance along a highway. A car traveled from milepost 15 to milepost 185. To calcula...
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