Answer:
9 meter per second square
Explanation:
acceleration equation is final minus initial velocity divided by time in seconds.
36-15/3=9 meter per second square.
Scientists have determined the temperature near the Earth's center to be 6000 degrees Celsius
None of the choices is correct.
Satellite communication is quite effective using either analog OR digital transmission.
Sound can't be used for satellite communication at all. (There's no medium to carry the sound to or from the satellite, and if there were, then the round-trip up and down through a geostationary satellite would take at least a minute at the sea-level speed of sound.)
Cellular devices can work but aren't required.
The resistance would increase.
