What were the cold war fears of the american people in the aftermath of the second world war? How successfully did the administration of president dwight d. Eisenhower address these fears?

Atransverse wave is traveling on a string stretched along the horizontal x-axis. the equation for the vertical displacement y of the string is given by y = (1.8 x 10-3)cos[π(13x - 60t)], where all quantities are in si units. what is the maximum speed of a particle of the string

Which statement correctly describes the relationship between frequency and wavelength?

How is zig zagging a form of acceleration?