You do not really know that you have a hand. Here is why. Imagine the possibility in which you are only a handless brain floating in a vat, wired to a super computer that sends to your brain signals that perfectly simulate ordinary sensory experiences. Now, if you really know that you have a hand, you must be in a position to know that you are not such a handless brain in a vat. But are you in a position to know that

3.12: the speed of sound the speed of sound depends on the material the sound is passing through. below is the approximate speed of sound (in feet per second) for air, water and steel: air: 1,100 feet per second water: 4,900 feet per second steel: 16,400 feet per second write a program class the speed of sound that asks the user to enter “air”, “water”, or “steel”, and the distance that a sound wave will travel in the medium. the program should then display the amount of time it will take. you can calculate the amount of time it takes sound to travel in air with the following formula: time = distance/1,100 you can calculate the amount of time it takes sound to travel in water with the following formula: time = distance/4,900 you can calculate the amount of time it takes sound to travel in steel with the following formula: time = distance/16,400

What type of adventure/puzzle computer games can i download and not have to pay for? some games that i've played are legend of zelda and rpg games.

Compete the sentence with the phrase that makes the proof statement true. c is the midpoint to segment ae segment ab is congruent to segment de length ac is equal to length ab plus length bc