I've tried this problem and the answer i got was 4.1. this was marked incorrect by the program. Could anybody help me.
One of the particles that compose atoms is called the proton. The proton has a radius of approximately 1.0 10-13 cm and a mass of 1.7 10-24 g. Determine the density of a proton. (volume of a sphere = 4/3 r3; = 3.14)
____g/cm3
2006-08-29 12:40:59 · 3 answers · asked by Krazyk78 1 in Education & Reference ➔ Homework Help
density = mass/volume
Your mass is 1.7 * 10^(-24)
Your volume is (4/3) * pi * r^3
With r = 1.0 * 10^(-13)
v = (4/3) * (3.14) * 1 * 10^(-39)
v = 4.1867 * 10^(-39)
d = m/v
d = 1.7 * 10^(-24) / 4.1867 * 10^(-39)
d = 4.061 * 10^14 g/cubic cm
Looks like you just forgot your scientific notation. Written out, this number looks like:
d = 406,050,955,414,012 g/cubic cm
2006-08-29 12:43:36 · answer #1 · answered by hawk22 3 · 2⤊ 0⤋
4.05 10 ^14
2006-08-29 12:52:52 · answer #2 · answered by C K Platypus 6 · 0⤊ 0⤋
go to a webstite or something
2006-08-29 12:43:44 · answer #3 · answered by Night visions 6 · 0⤊ 3⤋