If you walk 1.2 km north and then 1.6 km east, what are the magnitude and direction of your resultant displacement? a. magnitude: 1.1km; direction: 53.1 degrees east of north b. magnitude: 2.00; direction: 53.1 degrees east of north c. magnitude: 2.00; direction: 36.9 degrees east of north d. magnitude: 1.1km; direction: 36.9 degrees east of north

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

Identify the type of heat transfer occurring when chocolate melts in your hand

If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume