Why are seismographs buried deep underground? How is the location of the seismograph important when detecting an earthquake? Would the data be accurate if the seismograph were located on top of Earth's surface? ANSWER ALL 3 QUESTIONS PLEASE​

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.

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?