So it says:
A solid piece of leadc has a mass of 23.94 g and a volume of 2.10 cm^3. From these data, calculate the density of lead in SI units (kg/m^3).
So I converted g into kg getting .02394 kg and 2.10 cm^3 into m^3 getting .0210 m^3......
And I divide .02394 kg by .0210 m^3 and get 1.14 kg/m^3...
But the answer in the back of the book is 11.4 x 10^3 kg/m^3.
What am I doing wrong?
2007-01-26 12:34:21 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Your volume conversion is wrong. There are 100 cm in 1 m. But there are 100^3 cm^3 in 1^3 m^3.
2007-01-26 12:39:23 · answer #1 · answered by Dennis H 4 · 3⤊ 0⤋
D = 55ft. t = sqrt(2nd/g) t = sqrt(110ft/32ft/s^2) t = a million.86s I have not have been given any theory the thank you to procure 0.33s. Which in case you artwork it out backwards and you resolve g. g = 2nd/t^2 g = 1010ft/s^2 Acceleration = velocity / Time velocity = Distance / Time fairly Acceleration = (Distance / Time) / Time = Distance / (Time)^2 aka Distance over seconds squared. So no, you may not forget approximately concerning the seconds squared while fixing for time that's squared. so which you're able to sq. root the time so as to get the actual cost of time, and not time squared.
2016-12-12 21:11:24 · answer #2 · answered by ? 4 · 0⤊ 0⤋