How to find acceleration?

With a force of 15 N, a person is pushing a 30 kg crate over a horizontal surface. Suppose the crate is moving at a constant velocity. If the person lets go of the crate, what is the new acceleration that initially occurs right after the crate is let go?

Whenever I start a ps3 game it comes up with: An error occurred during the start operation. (80010510)?

The free games from the welcome back program are also not working however the error sign does not pop up.

PLZZ HELP!!! MY PARAKEET!!!?

ok so i am really worried about my parakeet and i dnt know wat to do! i just came down to see my parakeet and it is acting really weird, its wings r spread out and it wont use its legs and wen it moves it is trying to fly in stead of walking using its legs, also it keeps on chirping, and it sounds like its in paine or something. i have had this bird for a lil more than a week and i havnt had any problems with it. can someone plzz help me i am really worried about it. wat shuld i do? does anyone have an explanation on wats wrong? thx in advanced for any help!

Ovulation Spotting Question ANSWERS PLZ?

My lmp was on June 14 my husband and I started having sex on June 23,24 skipped 25th & everyday since then ttc. Today June 30 light spotting but I dont need a pad just when I wipe I notice alittle. Are u still in your "FERTILE" stage for conception???When ovulation spotting occurs I know it ISNT implantation way to early. Thanks guys

How can i get good stamina for football?

Run 5 milers. Jog at a good pace and push through it. Do this for a while and it will deft help yur stamina

Why would a young, healthy women let visible beard hairs grow, instead of plucking them?

Last week, I saw my niece. She is about 35 years old, married, with 4 children. She never was one to use make-up, dye her hair or manage her weight, but she has a desk job and does keep her hygiene and dresses appropriately. When we met, she had quite some visible, thick, black beard hairs. She could not have missed them, they where very distinct. I know this is not abnormal to occur with women and off course she is entitled to let them grow and I didn't mention anything to her, that is not up to me, I think. But I just can not understand why any normal, mentally healthy, happy young women would want that. Is it possible that she just doesn't care? For me, it feels like lack of self respect. Oh well, I just don't understand. Does anyone?

Mars is a planit that is many times largir than our pkanit earth, but it dosnt have the large amounts of lifes?

that are own planit has: trees, bushes, whales and even some apes. this is why mars should be explored more with acshual peeple, stead of dumb robots. well wat do u think and why?