4. Jim Nazium is walking from lunch to his PE class. He exits the lunchroom and walks 48 m west. He then turns and walks 60 m north down the hallway leading to the locker
room. Determine the magnitude and direction of Jim's resultant displacement.

On his honeymoon, james joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on mount blanc. what maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? the specific heat of water is 4186 j/kg ∙ k. a)0.064 c° b)0.053 c° c)0.071 c° d)0.047 c°