Physics, 21.09.2019 17:00 scoutbuffy2512
Project seafarer was an ambitious program to construct an enormous antenna, buried underground on a site about 1 km2 in area. its purpose was to transmit signals to submarines while they were deeply submerged. if the effective wavelength were 1.8 Γ 104 earth radii, what would be the (a) frequency and (b) period of the radiation emitted? ordinarily, electromagnetic radiations do not penetrate very far into conductors such as seawater. take the earth's radius to be 6370 km. (a) number enter your answer for part (a) in accordance to the question statemententry field with incorrect answer units choose the answer for part (a) from the menu in accordance to the question statemententry field with correct answer
Answers: 1
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, 22.06.2019 14:30
Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?
Answers: 3
Project seafarer was an ambitious program to construct an enormous antenna, buried underground on a...
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