A train has a mass of 100000 kilograms. if its kinetic energy is 3mj what velocity is it travelling at​

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

Asher cycles 12 miles in 16 hours. what is his speed?

The substances that are necessary for producing of certain hormones and that store and transport vitamins