Apack of iron bolt is such that the difference in masses(weight) of successive sizes is the same. the smallest bolt being of mass 4.5g and the largest 31.5g. if the total mass is 243g, calculate
1. the number of bolts
2. the difference in the masses of successive sizes

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.