Recent content by Agahnim

lol I am trying to think in components This problem's due in 30 mins so someone please solve it for me or at least give the equations and how to get the angle (I know its really simple, its just that I have one attempt left to get it right, I've already used up four attempts, so i want to be...

Ok, so if i understand it right: Take the normal force (which is the same as gravity * mass) and say that it acts in the vertical direction. Then take the centripetal force as (v^2 * m)/r. Then add these two vectors together? Can someone please be straightforward about this problem's...

Help! Can Someone Solve This Simple Physics Problem For Me?? hi i need help with a homework problem for physics: it goes like this: A roller coaster car of mass 310 kg (including passengers) travels around a horizontal curve of radius 40 m. Its speed is 18 m/s. What is the magnitude and...

Hi, thanks for the probleb advice! and next time i'll post it in homework help. But one thing I am not understanding: Wont the normal force be directly upwards and the weight be directly down, since the curve is not banked? Therefore the sum of forces in the y-direction will be ZERO right...

hi i need help with a homework problem for physics: it goes like this: A roller coaster car of mass 310 kg (including passengers) travels around a horizontal curve of radius 40 m. Its speed is 18 m/s. What is the magnitude and direction of the total force exerted on the car by the track...

Hi, Its ok, I am pretty confused about this thing as it is and no doubt confusing others in the process too! Basically...I was doing a chem. problem and my calculations showed that a 2.15 X 2.15 X 2.15 foot box (just very little bigger than 2 feet on each side) would take 75 gallons...

"15 inches squared is 225 square inches." Hi, I think if the AREA is 15 in. squared, that is the same as 15 square inches. This is the only way any of this makes sense to me. Therefore...if area is given as 15 in ^ 2, that is the same as 15 square inches.

What's the difference between '15 square inches' and '15 inches squared'. I always thought there was a difference but now am being told that both are the same. If that's the case... Then how does 1 sq. inch = 1 in squared? Also... Is 1 cubic foot the same as 1 foot cubed? Yes, that...