Is this MacBook Pro suitable for what I want to use it for? (Spec in full details)?

I'm looking to buy a macbook to complete all of my coursework on… I decided on a macbook as I have an iPhone and it would be useful to have an apple computer so I can keep my phone up to date easily too.

All I really want to use the MacBook for is to update my phone when it is needed, to complete and store all of my course work on and just for simple web browsing.

This is the spec:
MacBook Pro 2009
2.8 ghz intel core 2 duo
4gb 1067 MHz ddr3

I have no idea when it comes to computers! Clueless! So could somebody help me out? Is this going to be fast enough and efficient enough for what I want it for?

Message over my iPhone: Weak Security. WEP is no considered secure, configure the router to use WPA2 Personal (AES) security type

Message over my iPhone: Weak Security. WEP is no considered secure, configure the router to use WPA2 Personal (AES) security type - 1

If I upload a photo in the contacts app on the iPhone who will be able to see it?

On the iPhone/ iPod touch there's a contacts app and you have your own contact of yourself with your name and other info. You can also upload a pic of yourself. Will anyone be able to see it?

I have a iPhone 5c stuck on the lock screen that was powered off?

Seeing it was powered off I can't access the top and bottom bar I tried putting a sim with data on it but it says you can't use it until you enter the password and also it has a portrait orientation lock so I can reset it

Can I use my sprint phone with another carrier if it isn't paid off?

I current have a iphone through sprint but the plan is pretty expensive. I'm thinking about switching to boost mobile. Can I use my sprint phone with boost mobile even though i haven't paid it off with sprint yet?

How can i get rid of a password on iPhone 6S?

I was going to give my iPhone 6S to my brother and to do that I needed to wipe all settings. I clicked the reset all button in settings and now it is asking me for a password. It is not my old password and it is not my brothers either. How can I fully reset my phone again to get rid of the password?

How to Siri: Remind me when my last cup of coffee was?

How can I dictate with Siri into iPhone (6S) so that it stores the last time I had a cup of coffee?

The reason is I'm trying go cut down my caffeine intake, and so before I have another cup, I want to ask Siri, "When was my last cup of coffee?" (eg 5 hours later).

I don't want to do it with a pencil and paper or enter it into a note. If there's a way to use Siri in that capacity, that would really be awesome to learn.

Does LTE use more data than 3G?

I've already reached my data limit. This has happened in the past but not this quickly, I've noticed on the top left corner of my iPhone it says "Verizon LTE" if I disable that it will say "Verizon 3G" will I not use all of my data so quickly if I disable LTE and use 3G?

Just updated to Apple iOS 10.3.1 and now I can't play YouTube videos in the background?

Last night I updated my iPhone 5 SE to the new iOS and now I can't play my YouTube videos in the background. It worked before I updated it, and now it doesn't. I checked the settings, but I found nothing. Everytime I play a YouTube video and then turn off or hit the homebutton the video stops playing (which is normal) but when I pull up the quick access and click play, it tries to play my music instead. It's So frustrating. Is there a way to fix this? I tried downloading the YouTube app, but the problem still existed.

I have a T-Mobile iPhone and it broke so would it work to just buy a used iphone and reset it and put my current sim card in it?

I have a T-Mobile iPhone and it broke so would it work to just buy a used iphone and reset it and put my current sim card in it?