Technological advances are now making it possible to link visible-light telescopes so that they can achieve the same angular resolution as a single telescope over 300 meters in size. Part A What is the angular resolution (diffraction limit) of such a system of telescopes for observations at a wavelength of 500 nanometers?

Explanation:

θ = 1.22 × (λ/D)

where,

θ is the angular resolution (radians) λ is the wavelength of light

= 500 nm

= 0.5 × 10^-6 m

D is the diameter of the lens' aperture.

= 300 m

θ = 1.22 × (0.5/300)

= 0.00203 arcsecond.

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.