When two atoms of 2h are fused to form one atom of 4he, the total energy evolved is 3. 83 x 10exp-12. What is the total change in mass (in kg) for this reaction ? ( c = 3 x 10exp 8 m/s).

Explain how earth is like a giant bar magnet. how is our magnetic field made?

Tortoise shells and snail shells are similar in function: they protect the organism from predators. based on a comparison of the organisms in the images, what can you conclude? 1. tortoises and snails have homologous organs, and they’re evolutionarily related. 2. tortoises and snails have homologous organs, and they belong to same species. 3. tortoises and snails have analogous organs, and they belong to the same species. 4. tortoises and snails have analogous organs, and they don’t belong to the same species. 5. tortoises and snails have analogous organs, and they aren’t evolutionarily related.

Blank is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound