Radio signals travel at a rate of 3 × 10^8 meters per second. how many seconds would it take for a radio signal to travel from a satellite to the surface of the earth if the satellite is orbiting at a height of 3.6 × 10*7 meters?

a.) 8.3 seconds
b.) 1.2 × 10^–1 seconds
c.) 1.08 × 10^16 seconds
d.) 10.8 × 10^15 seconds

Which model displays the change in a gas when the temperature of the gaseous system decreases?

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.

The reason a penny thrown straight up inside a bus will come back to your hand is that you,the bus,the air inside the bus, and the penny are all moving at the same velocity. true or false