Use the pathagorean theorem to answer the following question. A ping pong ball is shot straight north from a popgun at 4.0 m/s the wind is blowing to the west at 3.0 m/s . What is velocity of the ping pong ball

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg