The auchsle frequency range of 50 Hz to 40,000 Hz can be
expressed as a period range equal to:

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

In apex! a liquid heated beyond a certain temperature becomes