A block of wood is 10 cm long ,by 4cm broadby1.5 cm thik the block weighs 31g find the density of the wood in kg/m3

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

The slope of a velocity time graph over any interval of time gives the during that interval