Ahowler monkey is the loudest land animal and under some circumstances, can be heard up to a distance of 5.0 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/m^2. the acoustic power emitted by the howler is closest to a) 3.2 mw b) 0.11 mw c) 11 mw d) 1.1 mw e) .31 mw

In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

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.