A 1.0 kg cart moving right at 5.0 m/son a frictionless track colloids with a 3.0 kg cart moving right at 2.0 m/s the lighter kart as a final speed of 4.0 m/s what is the final speed of the 3.0 kart

In physics the desire of an object to keep doing what it is doing is termed?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants