Physics, 27.06.2019 00:40 mikeydog3781
The intensity of sunlight under the clear sky is 920 w/m2 . how much electromagnetic energy is contained per cubic meter near the earth’s surface? the speed of light is 2.99792 × 108 m/s. answer in units of j/m 3 .
Answers: 3
Physics, 23.06.2019 03:30
Astudent pushes a 40-n block across the floor for a distance of 10 m. how much work was applied to move the block? a. 4 j b. 40 j c. 400 j d. 4000 j
Answers: 1
Physics, 23.06.2019 11:00
Two lasers are shining on a double slit, with slit separation d. laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. the lasers produce separate interference patterns on a screen a distance 5.30 m away from the slits. part a which laser has its first maximum closer to the central maximum? view available hint(s) which laser has its first maximum closer to the central maximum? laser 1 laser 2
Answers: 3
Physics, 23.06.2019 11:30
1. do the particles in the medium material move in the same direction of the wave or at opposite direction to the wave? explain your answer. 2. by inputting more energy into the wave, i.e a large shake of the spring, which wave property also increases? 3. are there forces of friction acting while a wave is passing through a medium?
Answers: 3
Physics, 23.06.2019 16:00
In the absence of friction, gravity, and all other external forces, what kind of speed will an object display if it travels from the bottom to the top of an inclined plane? a. constant speed b. increasing speed c. decreasing speed d. speed increases and then decreases e. speed decreases and then increases
Answers: 1
The intensity of sunlight under the clear sky is 920 w/m2 . how much electromagnetic energy is conta...
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