Problem three: unpolarized light with intensity of 1350 w/m2, which is the intensity at an earth-orbit space telescope monitoring the sun, passes through four polarizers. the first has an angle of 30 degrees, the second with 35 degrees, third with 70 degrees, and fourth with 90 degrees, all angles with respect to vertical. a. what is the resulting intensity? b. what are two (of several, so pick two) changes you can make to ensure no light will pass through?

Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface