Recent content by goofnewf

if anyone can help me please inbox me

anyone else?

it's not a homwork question. I have an exam and it's a question from a past one

Can you work this out for me please, and show me the answers.

Homework Statement A Brick is 8cm think and has a thermal conductivity of 1.10 J/(s.m.degreesC). Styrofoam insulation is 3cm thick and has a thermal conductivity of .010 J/(s.m.degreesC). The bricks are used to line a furnace a) if the temperature on one side of the brick wall is 500...

i still don't get it, what is the formula for it, could you show me a sample calculation?

Homework Statement the breaking system on a car utilises a master pistion that is 10 cm in dimeter. the four outout pistons (one on each wheel) are 2cm in diameter a) if 500 N of force is applied to the master piston, what is the output force on each of the wheel pistons? b) if the...