Recent content by FahimP

Homework Statement I hav been trying to solve this differential equation by Method of Undetermined Coefficients for a long time. y"-2y'-3y=-3te^(-t) ...... We are supposed to guess a solution then differentiate and go from there. I guessed y = (At + B)e^(-t) .... but this does not...

Homework Statement I have this problem its been bothering me for a while. The problem asks to be solved by method of superposition. I have already solved it but I am sure it can also be solved by thevenins or nortons. I can tried many different combinations but i can't seem to get it. Please...

hello i need some explanation on this . I know that when a battery is connected it provides constant voltage across the capacitors. But the happens when the battery is disconnected. What happens to the voltage, the capicitance, and what is the importance of dielectric. I have read the book...

Homework Statement Two containers contain the same gas at different temperatures and pressures, as indicated in the figure. The small container has a volume of 1 L, and the large container has a volume of 2 L. The two containers are then connected to each other using a thin tube, and the...

Homework Statement Hell people I am stuck on this problem I solved and got the correct ans but. I somehow stumbled on the right answer by accident. My work is correct buy I have one question. 1.) on a hot day , a cubical swimming pool is filled to within 1.9 cm of the top with water at...

WHICH IS HARDER PHYSICS 1 or 2 ADVICE NEEDED ! Hello PEOPLE ... I am currently community and very close to transfering. My major is civil engineering. There's only 1 semester left for me then i transfer. I need some advise asap. I am currently taking University Physics 1 at my college and...

Homework Statement the Earth has a n angular speed of 7.272 x 10 ^ -5 rad/s in it;s rotation. Find the new angular speed if an asteroid ( m = 1.17 x 10 ^ 22kg) hits the Earth while traveling at 1.41 x10^3 m/s. the asteroid hits the Earth dead center Homework Equations The...

Homework Statement The Earth has an angular speed of 7.272 10-5 rad/s in its rotation. Find the new angular speed if an asteroid (m = 1.17 1022 kg) hits the Earth while traveling at a speed of 1.41 103 m/s. The asteroid hits the Earth dead center. We are just learning physics so this is all...

Homework Statement Suppose the vertical loop has a radius of 5.40 m. What is the apparent weight (Wap) of a rider on the roller coaster at the bottom of the loop? (Assume that friction between roller coaster and rails can be neglected. Give your answer in terms of m and g.) Homework...

Homework Statement The problem is asking to find the Acceleration vector before jack reaches the less steep section. the Ans from back of book says : (3.95)i + ( -2.29 ) j My answer does not match at all : ANY HELP PLZZZZ anyone know how to get this ? Two skiers, Annie and Jack...

Homework Statement I just did an experiment. where i was sliding an object across a horizontal pipe. One end of the pipe was like 5 inches of the ground and the other side was on ground level. I did a few tests calculating the time it took to pass through two check points. I was calculating...

Homework Statement Two train cars are on a straight, horizontal track. One car starts at rest and is put in motion with a constant acceleration of 2.4 m/s2. This car moves toward a second car that is 29 m away and moving at a constant speed of 4.0 m/s. a.) where will they collide b.)...