How many valence electrons does pocl3 have?

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)