Can someone help me with 19 and confirm the answer on 20? thanks

Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

secondary 4 | Physics
2 Answers Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

secondary 4 Physics Singapore

Can someone help me with 19 and confirm the answer on 20? thanks

Date Posted: 1 year ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 1 year ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 1 year ago