The type of energy that depends on position is called a.
potential energy.
b.
electrical energy.
c.
magnetic energy.
d.
solar energy.

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

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

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?