Express 0.00005 s in µs

Is the alien theory a scientific claim? why or why not? just took the test it was , : " the alien theory is not a scientific claim because it is not based on valid data, there is no evidence to support it, and it does not come from a reliable source."

Which of the the following are examples of projectile motion of both projectile motion and two dimensional motion

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge