Physics, 02.08.2019 10:30 tlester2005
26 points refer to the image shown to answer the question. if a light ray is reflected off the shiny surface at 170 degrees, at what angle did the light ray first strike the surface? incident rays are shown at 10, 30, 50, and 70 degrees. the line at 90 degrees is labeled normal. reflected rays are shown at 110, 130, 150 and 170 degrees. 70 degrees 110 degrees 170 degrees 10 degrees
Answers: 2
Physics, 22.06.2019 12:00, marquez8
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 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
Physics, 22.06.2019 20:40, madisonnnn68
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j. b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 21:50, nathaniel12
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
26 points refer to the image shown to answer the question. if a light ray is reflected off the shiny...
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