Question
These are my last 2 questions i need help on....
1. to determine the density of an irregularly shaped object, a student immersed the object in 21.2 ml of water in a graduated cylinder, causing the level of the water to rise to 27.8 ml. If the object had a mass of 22.4 g, what was the density of the object?
(remember 1 ml = 1 cm cubed)
2. Carbon fibre bicycles have essentially replaced the aluminum and aluminum alloy bikes in the Tour de France. Carbon fibre has a density of 6.24g/cm cubed. Aluminum has a density of 2.70g/cm cubed. what property of carbon fibre is the most likely reason for the switch? explain your reasoning.
someone help me.... thank you
1. to determine the density of an irregularly shaped object, a student immersed the object in 21.2 ml of water in a graduated cylinder, causing the level of the water to rise to 27.8 ml. If the object had a mass of 22.4 g, what was the density of the object?
(remember 1 ml = 1 cm cubed)
2. Carbon fibre bicycles have essentially replaced the aluminum and aluminum alloy bikes in the Tour de France. Carbon fibre has a density of 6.24g/cm cubed. Aluminum has a density of 2.70g/cm cubed. what property of carbon fibre is the most likely reason for the switch? explain your reasoning.
someone help me.... thank you
Answers
Volume = (27.8 -21.2) cm^3
mass = 22.4 g
density = 22.4/(27.8-21.2) g/cm^3
mass = 22.4 g
density = 22.4/(27.8-21.2) g/cm^3
High tensile strength so it can be made lighter for the same strength despite being more dense.
THANK YOU SO MUCH :):):):):)