The particles of a solid are linked together in a network. if the temperature of the solid increases, the particles gain energy. if they gain enough energy, the particles can break free of the network. then, they are able to move around more freely. in the event described above, what kind of change is taking place?

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.