Posted by Ana on .
Calculate the magnitude of the linear momentum for the following cases.
the Earth (mass = 5.98*1024 kg) moving with an orbital speed equal to 2.98*10^4 m/s.
so i did 5.98*10^24 times 2.98*10^4=1.78204 × 10^29
But homework website doesn't accept this answer...is there something that i missed while calculating? if not, could you tell me some ways to insert the answer.
Thanks

Physics 
drwls,
Perhaps they want you to round off to
1.78*10^29, to keep the same number of significant figures. Or drop the "x" and use *10^29 or E29
You computed it correctly.