Explain how Archimedes determined what King Hiero II’s crown was composed of.

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

7. in the cycle, a virus integrates its dna into the host's dna, and its dna is replicated when the host dna is replicated. a. infectious b. retroviral c. lysogenic d. lytic