A force of 350 N is applied to an object that accelerated at a rate of 5 m/sec2. What is the mass of the object

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.

Which changes of state do the labels represent? a: b: c:

Acompound machine is also called a machine. a. force b. simple c. complex d. directional