A second student places a hot sample of iron into cold water. Her data is shown below. What
was the mass of the sample of metal she placed into the cold water? Enter your answer to the
nearest whole number of grams.

Mass of cold water: 100 g
Initial temperature of water: 20.0°C
Specific heat of iron:
0.449 J/gºC
Initial temperature of iron: 80.0°C
Equilibrium temperature of system:
42.5°C

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

i need mutiple choices

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.