Recent content by Izekid

Please help me solve this equation a * 0,1 + (1-a) * 0,05 = 0,0608 My head is like a bomb i can't solve it :bugeye:

To a music consert there were an Income of 85500$ There were 2 types of tickets sold, one that cost 90$ and one that cost 120$. totally there were 800 tickets sold, how many of each ticket was sold. Here I Shall use the ordinary math equation M = pxX + pyY and solve the equation, and I have...

This is a economic math question see if you can help me out here. I've got 3 variables A,B and C and I shall get the production to be optimal I have there variables This is the formula = Z = 800A+ 550B +400C Under these condition it shall work 14A+10B+8C=<4500 12A+7C=<1000...

One day when the familiy Jones is out and drives with his new car wonders Oskar why there is a lot of wires in the backwindow. The heat wires are parallelwired where the resistance is resistance free wired. Oskar and his father reads in the instructionsbook that the wires got a resistance...

Here it comes, I have a frictiongrade who is 0,45 A car who is driving in 18m/s and mass of the car 1200kg For the Frictionpower it is : 0,45 * (mg) = 5,5 kN And how do I calculate the meters the car travels until it stops?

Hi! I have problem with this ... A airmass with the volume 1200m^3 the presswure 101kPa and the temperature 288K moves vertical upwards. The pressure sinks to 80kPa and the temperature sinks to 270K. Calculate the new pressure and I know how to use it I take 101*1200/288 = 420 Is...

Is this right? Is this right then... I take 2m/s which is v1 and put in in kinetical energy equation and take out v^2= Sqrt 2*g*h = 4,45 which is the right answer but I don't seem right it must be harder than that

There's a wagon standing on a hill The Height :0,81m When v1 = 0m/s then v2 = 4m/s when the wagon has rolled down the slope. What is the velocity when the startvelocity is 2m/s ... How do I do this... I've tried many things but I don't know the mass so how should I do? Please help

Thx guys had some problems there ...

Help! Yeah I forgot...the mass is 1200kg please tell me how to do it not only show the answer ...

I know 4 thing Velocity 10m/s KE = 60000 Velocity 15m/s KE = 135000 For the next velocity the KE raises antoher 105000 and the new Velocity = ? and KE = 240000 How do I solv the new Velocity...

I have solved the problem for u, For nr 2 You take Fg*m*0,05 = And you get the Frictionwork. For nr 3 its the same because all energy does not go away it transforms so it must be 20J. And nr 4 it's just to take S = W/F because the definition for work is W= F*S I hope this is right, this is...

The Air Resistance of a car grows proportional to the square of the velocity. On a certain car is the air resistance 0,18kN when the velocity is 54km/h. So the problem is .. What is the air resistance when the velocity is 90 km/h? How high is the velocity when the air resistance is...

Here's my problem A box with the heathcapacity 80J/K contains 0,2kg water. The box and the water has together the temperatur 18*C. We put 0,050kg ice with the temperature -15*C in the box of water. Investigate if all ice melts. Don't take with heath from the surrondings. Well for this...

Eh? Don't know what you're suggesting please understand I'm no science freak :cry: :cry: :bugeye: :smile: :zzz: Yeah I have 3 forces gravity is one my power pressing the bathball down is one and the will to go up is the third. But I do not not the force pressing the item down!? And how...