Answer:
Required center of mass
Step-by-step explanation:
Given semcircles are,
whose radious are 1 and 4 respectively.
To find center of mass, , let density at any point is and distance from the origin is r be such that,
where k is a constant.
Mass of the lamina=m= where A is the total region and D is curves.
then,
- Now, x-coordinate of center of mass is . in polar coordinate
Then,
- y-coordinate of center of mass is . in polar coordinate
Then,
Hence center of mass
Answer:
she spent 2 1/3 weeks in total
Step-by-step explanation:
Answer:
5 bouncy balls for 9$
Step-by-step explanation:
Unite rate for 7.60= 1.90
unit rate for 9=1.8
Easy divide the $ by the yards then multiply the number of $ to the amount needed ;D
Answer:The one you already have marked,B.
Step-by-step explanation: