Q3. A bridge is built without expansion gaps. Explain what could happen to the bridge if the temperature became:

a) much hotter than the day it was built.
b) much colder than the day it was built.

Please explain

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?