Amechanical wave is a wave that it’s engery

does require a medium to transfer

does not transfer

does not require a medium to transfer

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?