Aparticle moves along the x-axis according to the equation 3x +4x+6, where x is the position in meter and t is the time in second. find the speed when x = 1.0 m 0.5 m/s

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?

An atom that has gained or lost electrons is called an _

Is the number of complete movements of a wave per second.