What is the energy of a photon with a frequency of 1.7 × 1017 hz? planck’s constant is 6.63 × 10–34 j•s.
a} 1.1 × 10–17 j
b} 1.1 × 10–16 j
c}8.3 × 10–16 j
d} 8.3 × 10–15 j

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante