Explanation:
<h3>We have for velocity of package v= 20 - 9.8t and for distance from the ground y = h + 20t - 4.9t2.</h3><h3>We have y = 0 and t = 18.0 s we have h = 4.9·182 - 20·18 = 1227.6 m.</h3><h3>Velocity at landing v = 20 - 9.8·18 = - 156.4 m/s </h3>
Color spectrum, that rainbow of colors that appears when white light is refracted into a prism to separate all colors of visible light. Basically a rainbow.
The visible wavelengths constructively reflected by the film when it is surrounded by air on both sides can be calculated using the equation:
lambda = 2t*(n2/n1)
where:
lambda is the wavelength,
t is the thickness, and;
n1 and n2 are indexes of refraction
The law of conservation of energy is a law that states that "energy cannot be created or destroyed, only changed" this means that you can't create it or destroyed as in, if you burn wood, you have released the energy. you haven't destroyed it, you have just released it
