Recent content by ilovemynny

Oh, THANK YOU! I tried using substitution to check but yeah since it's so messy I probably messed up somewhere. Thank you so much! This problem was really starting to freak me out. Thank you, eumayang, for cleaning it up! I tried converting my answer to the book's answer but I was really...

Intro: I'm starting college this fall. I asked one of my professors if we had a textbook and he said that there's an online version and I should read a bit of it if I wanted to. On the first chapter they were talking about simple (I mean really simple algebra, this is a vector geometry...

awesome :D thank you! sorry >.< the reason why i put it in advanced is because I'm taking ap physics right now >.< i didn't know where to put it

Homework Statement Joey is now on a raft in the ocean, try to sail home. The raft + Joey have a total mass of 195kg. The ocean current produceds a force of 60N eastwaard and the wind produces a force of 95N at 80 degrees. Find the acceleration of the raft (magnitude and direction). If these...

The following five points lie on a function: (1, 20), (2, 4), (5, 3), (6, 2), (10, 1). Find a function that passes through these points and has these features: 1. There are three inflection points 2. There is at least one relative maximum 3. There is at least one relative minimum 4. At least...

Homework Statement A water tank the shape of an inverted circular cone with a base radius of 2m and height of 4m. if water is being pumped into the tank at a rate of 2m^3/min, find the rate at which the water level is rising when the water is 3m deep. dv/dt = 2m^3/min h = 3m r = h/2...

Homework Statement The Known Facts of the Accident [1] Ned was traveling North on Oak Avenue in his car of mass 2000kg [2] Ed was traveling East on King Street in his truck of mass 3000 kg [3] The two approached the intersection at the same moment. [4] With his stoplight “green”, Ned had...

Homework Statement Car 1: 2000 kg Car 2: 3000 kg coefficient of friction: 1.5 angle of movement: 40 degrees North of East displacement of vehicles: 6.0 m What was the friction force that acted upon the locked sliding cars to stop them? What was the magnitude of the acceleration...

actually no >.> my previous questions used the sin when finding height but when i looked up the formula for work with angles it gave me cos. can you tell me why?

I have a similar problem like this so if I was to solve this problem would it go like this: Work=Fsin(theta)D ?

wait wait what if I did this instead? W = 421.83N x 66.2 m x (Sin 32)

Finding the Work done on a Ride? Homework Statement The lift incline on the Batwing ride at Six Flags America, is 66.2 m long and has an incline of 32.0 degrees. How much work is done to take a 43 Kg child to the top of the hill? Homework Equations W = FsCos I don't know if this is the...

YES! thank you so much!

ohhh okay 14 and 12 m represented the height so then: 14 +12 = 26 so then 26 x 2 x 9.81 = 510 square root of 510 = 23m/s so is 23 m/s the final velocity?

it says calculate their speed after they have ridden the first 75m of track, and then you said it would be better to use the overall height