One joule of work performed in one second = 1 , the SI unit for power.

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

When does your body conduct current more readily?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.