Use the law of conservation of energy. For the systems we consider what?
a. The initial potential energy of the system equals the final potential energy of the system.
b. The initial thermal energy of the system equals the final thermal energy of the system.
c. The initial total energy of the system equals the final total energy of the system.
d. The initial kinetic energy of the system equals the final kinetic energy of the system.
Answers: 2
Physics, 22.06.2019 05:40
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 23.06.2019 01:00
Two positive charges are equal. which has more electric potential energy?
Answers: 1
Physics, 23.06.2019 02:10
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 3.00 ms . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 1
Physics, 23.06.2019 02:30
If frequency goes up, what happens to wavelength? does it get shorter or longer?
Answers: 2
Use the law of conservation of energy. For the systems we consider what?
a. The initial potential e...
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