La corda rappresentata in figura ha una massa di 80,0 g. Calcola quanto tempo impiega la perturbazione generata da Manuel, sulla sinistra, e raggiunge Patrizia, sulla destra

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.