-The internal energy of the gas in a gasoline's engine cylinder decreases by 225 J. If 75 J of work is done by the gas, how much energy is transferred as heat​

d) the number of neutrons plus the number of protons

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

b.transmitters send radio waves, and receivers capture radio waves.