The lowest point in Death Valley is 85 m below sea level. Thesummit of nearby Mt. Whitney has an elevation of 4420 m.
What is the change in potential energy of anenergetic 65 kg hiker who makes it from the floor of Death Valleyto the top of Mt. Whitney?

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 amount of potential energy possessed by an elevated object is equal to what?

Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.