The state of matter with a specific volume but no definite shape is the state.
plasma
gas
liquid
solid

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

Aball of mass 0.3kg is released from rest at a height of 8m.how fast is it going when it hits the ground? accleration due to gravity is g=9.8m/s

There are 3 ways heat can be transferred: through solids, called , through liquids and gases , called , and through electromagnetic waves, called