Final Definition and 1000 Threads

Does anyone know any challenging Materials engineering related project I could undertake , I am in my final year and I would want a challenging final year project, preferably in industry.

Homework Statement A photographer in a helicopter ascending vertically at a constant rate of 12.5 m/s accidentally drops a camera out the window when the helicopter is 60.0 m above the ground. -How long will it take the camera to reach the ground? What will its speed be when it hits? a= -9.8...

Homework Statement if 100.0g of water at 100.0 C is mixed with 200g of water at 20.0 in an insulated container, what will the final temperature be? Homework Equations Q=MCdeltaT The Attempt at a Solution Since the energy change would be equal but opposite I though oh well I can...

Homework Statement A baseball thrown at an angle of 65.0° above the horizontal strikes a building 18.0m away at a point 5.00m above the point from which it is thrown. Ignore air resistance. 1- find the magnitude of the initial velocity of the ball.-found 2- find the magnitude of the...

Homework Statement A ball is rolled down a rough hill with coefficient of \mu<tan\theta. The hill has a height of h. The ball has moment of inertia of I, mass of m, and radius of r, which are all constant. What is the final velocity of the ball at the bottom of the hill? P.S. I made this...

Homework Statement All right so this will probably sound a little muddled but I'll try anyway. We conducted a lab today in class. We were given a hot wheels car, a meter stick, a ramp, and a stopwatch. We were told to find final velocity of total distance. We were not told how to actually...

Homework Statement A small metal sphere, carrying a net charge of q_1 = -2.70 \mu C, is held in a stationary position by insulating supports. A second small metal sphere, with a net charge of q_2 = -7.60 \mu C and mass 1.50 g, is projected toward q_{1}. When the two spheres are 0.800 \rm m...

Homework Statement Question: A motorcycle traveling at 40 ft/s is given an average acceleration of 4 ft/s^(2) for 10 s. Find the final velocity. Homework Equations Average Velocity= [displacement][/total travel time ] v= [[x][/2] - [x][/1]][/[t][/2]...

Homework Statement A student drops a ball from the top of a tall building; it takes 2.5 s for the ball to reach the ground. A.What was the ball’s speed just before hitting the ground? B.What is the height of the building? Homework Equations v=V(not) + at x=V(not)t + 1/2at(Squared)...

Homework Statement A startled armadillo leaps upward, rising 0.523 m in the first 0.206 s. (a) What is its initial speed as it leaves the ground? (b) What is its speed at the height of 0.523 m? (c) How much higher does it go? Homework Equations The five Kinematic equations The...

Hi guys, I am a mechanical engineering student and before the end of this year, I must select final year project to do research on. I am really interested in renewable energy and have a particular interest in wind energy/wind turbines. I am after a project that will require me to do site...

final speed ?? A 5 kg vase is lifted vertically from rest to a distance of 10 m with a constant upward applied force of 60.0 N. Calculate iii) the final speed of the vase F=ma 60=5(a) a=12 v^2 = U^2+2as v^2=0+2(12)(10) V^2 = 240 v= 15.49m/s is the step correct~...

Homework Statement Electrons are accelerated from rest through a potential difference of 250000 V. What is the final speed predicted classically? What is the final speed predicted relativistically? Homework Equations KE=0.5mv^2 KE=mc^2-m0c^2 The Attempt at a Solution...

hii friends... i am doing my final year engineering ...need some ideas for my project in zigbee or dtmf domain...mostly based on electrical field like power conservation, control of machines etc...

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Hello all As anyone with a front-loading washing machine knows, watching them in action can be great entertainment. Well, I was bored tonight and did just that. During the final spin cycle, the drum spins really, really fast (not too sure how many rpm) to wring most of the water out of the...

Homework Statement Find the final temperature? PV relationship -- PV^1.2 = constant P1 = initial pressure = 720 kN/m^2 V1 = initial volume = 0.4 m^3 V2 = final volume = 1.2 m^3 T1 = initial temperature = 225 C I managed to get the final pressure part out of the way but don't know where to...

Homework Statement A and B are two identical containers connected by a tap initially closed. A contains an ideal gas at a pressure P1 and temperature T1. B contains the same gas at a pressure P2 and a temperature T2. The tap is the opened. If the temperatures of the containers A and B remain...

Homework Statement You have a 4kg block attached to a string with T=35N. If the block begins at 5m/s and is lowered 10m what is approxaimate final velocity of block? So I got the question right: Find Fnet and times it by 10m and set (Fnet)(10)= work = KE and find velocity from KE. But...

A spring with a spring-constant 3.4 N/cm is compressed 27 cm and released. The 9 kg mass skids down the frictional incline of height 13 cm and inclined at a 17◦ angle. The acceleration of gravity is 9.8 m/s2 . The path is frictionless except for a dis- tance of 0.5 m along the incline...

Homework Statement Suppose 69.3 J of heat is added to a 121 g piece of aluminum at 22.5 C. What is the final temperate of the aluminum? Homework Equations Q = m c (T - T1) I think, but I am only given 1 temp. The Attempt at a Solution There are examples that are simialr in my...

Trebuchet help! 1. Hi, I am writing a report for a trebuchet project, and trying to find the final velocity of the tennis ball, my teacher told us to just use this :F=m(v^2/r) for initial velocity. so I am really confused right now. I don't know how to find final velocity. Also, which equation...

Hi everyone, I guess I'm coming to that point of realization that I'm not going to pass my calc course. I don't really know why I'm writing this, maybe in the hope that someone on this forum may have been in a similar spot and could advise me about their experience. I've never really failed...

Homework Statement A small block (mass m) slides down a circular path (radius R) which is cut into a large block (mass M), as shown. M rests on a table and both blocks slide without friction. The blocks are initially at rest, and m starts at the top of the path. Determine the velocity of m...

Homework Statement A hockey puck sliding on a frozen lake comes to rest after 238 m. If its initial velocity is 3.8 m/s what is its acceleration if it is assumed constant? Answer in units of m/s^2 How long is it in motion? What is its speed after traveling 180 m? Homework Equations x=xo +...

I have a Q&M final coming up. The math I can do. However I would like to strengthen the concepts. Can anyone point to a resource that includes conceptual test? This is for junior level Q&M. Thanks

Homework Statement A 20kg object is on a 10 m long, 15 degree slope , that has a coefficient of friction that is 0.2 Calculate the time to slide down the final velocity at the bottom [b]2. Homework Equations [/b Fg=mag Fn=Fgcos(theta) Fp=Fgsin(theta) mu=Ff/Fn Fr=MAr The Attempt...

I got an 85 on my AP Bio Final! Wohoo

Homework Statement The problem is not getting the answer to the laplace transform but instead reducing my answer so i dnt lose marks. If i work out the laplace transform of: L(t^3 * sinh(4t)) to be 3!/(2(s- 4)^4)- 3!/(s(s+ 4)^4) then how do i add these to get a single fraction? Its doing...

Who will win the Final [SIZE="4"][FONT="Arial Black"]Is it : [SIZE="6"][FONT="Arial Black"]Manchester United [SIZE="5"]Or [SIZE="6"][FONT="Arial Black"]FC. Barcalona

Hey, I'm a high school student interested in persuing Physics in college. I just took my AP Physics exam, and I think it went well =]. I realize this isn't a specific homework question, but because it pertains to my AP Physics class I thought it would be appropriate here. Because we took...

final velocity of a ball pushed by compressed air..pls. help! Homework Statement Compressed air is used to fire a 1.72 kg ball vertically upward from a 1.50 m long tube. The air exerts a upward force of 28.7 N on the ball as long as it is in the tube. With what velocity does the ball leave...

Homework Statement Three identical train cars, coupled together, are rolling east at 1.13 m/s. A fourth car traveling east at 6.43 m/s catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the tracks, and it couples...

0.5Kg snowball moving at 20m/s strikes and sticks to a 70Kg man standing on the frictionless surface of a frozen pond. what is the final velocity?

Not sure what I am doing wrong What is the change in temperature between the initial and final state of the gas? A) A monatomic, ideal gas is in a sealed container (the number of gas molecules is always constant: n = 2 moles); the initial pressure is Pi = 1.01 x 10^5 Pa and the initial...

Homework Statement T1=300K P1=100kPa V1=1m^3 T1=T2=T3 P2=P3=200kPa V3=0.1m^3 Q: Air initially at 300kpa is contained inside a piston-cylinder device with a volume of 1m^3. The cylinder is equiped with a check valve allowing air to escape when the air pressure reaches 200kPa. An...

Homework Statement A 81-g ice cube at 0°C is placed in 878 g of water at 25°C. What is the final temperature of the mixture? Homework Equations No heat is loss therefore m*Cp*deltaT+m*Cp*deltaT=0 Cp ice=2.09 Cp water=4.19 The Attempt at a Solution...

Homework Statement A 60.5g piece of lead is at 18.6oC. If 328 cal of heat is added to the lead, what is its final temperature? Do not enter units. Homework Equations I was trying to use 328 as the Q value and solve for delta T Q=mCdelta T HOWEVER, this wasn't working. The...

Homework Statement A yo-yo has mass of 400 kg and radius of 1.5m. Its axle of rotation has a radius of 0.1m. Its string is attached to a crane. What is its final velocity after it is released. mass (m)=400 kg Radius (R)= 1.5 m axle of yo-yo (r)= 0.1 m...

Homework Statement A rocket is traveling with a speed 20 km/s in a non-gravity space. To fix the direction of motion, it turns on an engine, which pushes the gasses with constant speed 3 km/s w.r.t. the rocket perpendicularly to the direction of its motion. The engine is on till the mass of...

Homework Statement A 10 kg block of ice has a temperature of -8°C. The pressure is one atmosphere. The block absorbs 4.17 x10^6 J of heat. What is the final temperature of the liquid water? Q=4.17x10^6J T_0=-8 Mass=10kg 4184= specific heat of water 2000=specific heat of ice...

Hi guys, Well I now have a few weeks to make up my mind in which to put as my first choice (not sure if I have a second but even if I did it would be sort of irrelevant as all offers are AAA or AAB :D). I've basically numbered it down to Manchester and Nottingham, I had offers from both York...

How can I calculate the impact speed(final velocity) of an object of mass 100kg, dropped from a height of 100m, only considering gravity.

Homework Statement A 1.2kg mass moving 2.4m/s [East] has an elastic collision with a 2.4kg mass moving 1.8m/s [North]. What are the final velocities? ------------------------------------- I know that I need Ek before and after the collision, but I'm not sure how to calculate it for this...

If anyone has advice as to which of these institutions I should enroll at please inform me! Some things to consider: I got into a Mathematical Scholars Program at Bucknell (note: I plan on majoring in both Physics and Mathematics. sidenote: A professor at Rutgers told me not to do this...

Homework Statement The graph shows the net external force component F cos θ along the displacement as a function of the magnitude of the displacement s. The graph applies to a 65 kg ice skater. http://img9.imageshack.us/img9/3441/0671.gif (a) How much work does the net force component do on...

Can someone care to explain the mathematics behind it? i initally thought that she'd go the full 15m, but because the cart does move slightly to the left as she runs it's just a bit less than the full 15m, can someone give me the maths to it...

Homework Statement Hello, I am curious on how azeotropic distillation works. I know it has to do with the gas law, PV=nRT but I would like to know in depth analysis how this process works. I have organic 2 lab final coming up (this Tuesday) and it may happen we might be asked to...

Homework Statement 1. A woman weighing 730N stands in the middle of a frozen pond of radius 5m. She is unable to get to the other side because of a lack of friction between her shoes and the ice. To propel herself, she throws a 1.2kg backpack horizontally towards the south shore at a speed...

Homework Statement What would be the final temp if you mixed 1 liter of 20°C water with 4 liters of 40°C water? This question is very straightforward, and is, of course, assuming total conservation of temp. Homework Equations My book mentions q=mc∆t, but using that equation, I get...