The key aspect of two-slit interference is the dependence of the total intensity at point OOO on the angle θθtheta. Find this intensity I(θ)I(θ)I(theta). The formula for intensity is I=ϵ0c(amplitudeofE)22I=ϵ0c(amplitud eofE)22 .

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An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).