7 a Why is ice good for cooling drinks?
b Why do engineers often use superheated steam
(steam above 100°C) to transfer heat?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?