An object is swung in a circle with the radius of 5 m. If the object makes one rotation in 2.2 sec, what is the velocity of the object?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.