Bijan used a table of densities to try to identify the metal. The table is shown below.
Metal
aluminium
brass
copper
gold
iron
silver
steel
tin
Density in g/cm
2.7
8.5
8.9
19.3
7.9
10.5
7.9
7.3
с
Which metal might Bijan have been investigating?
Can Bijan be sure of this answer? Explain why/why not.

What are atoms of the same element with varying number of neutrons

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.

Newton's law of cooling states that the rate of change in the temperature t(t) of a body is proportional to the difference between the temperature of the medium m(t) and the temperature of the body. that is, startfraction dt over dt endfraction equals upper k left bracket upper m left parenthesis t right parenthesis minus upper t left parenthesis t right parenthesis right bracket , where k is a constant. let kequals0.04 left parenthesis min right parenthesis superscript negative 1 and the temperature of the medium be constant, m(t) font size decreased by 3 equivalent font size decreased by 3 294 kelvins. if the body is initially at 369 kelvins, use euler's method with hequals0.1 min to approximate the temperature of the body after (a) 30 minutes and (b) 60 minutes.