Pendulum makes 12 complete swings in 8 seconds, what are its frequency and period on earth

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

Ionic compounds can be readily dissolved in water because the high dielectric constant of water screens and decreases the force between the oppositely charged ions.