An object is attached to a spring and its frequency of oscillation is measured. then another object is connected to the first object, and the resulting mass is four times the original value. by what factor is the frequency of oscillation changed?

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?