Two spheres. labeled I and B. lave identical masses, but are made of different substances. The specific heat capacity of sphere is 140 J/(kg . Cº) and that of sphere B is 160 J/(kg. C). The
spheres are initially at 21 C: and the same quantity of heat is added to cach sphere. If the final
temperature of sphere I is 72 C. what is the final temperature of sphere B?

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.