A 50-m steel tape is standard at 0°C. What is the actual length at 28°C? Linear coefficient of expansion is 11 × 10-6/°C.

Question

anonymous · Answer

it's $$50*(1+(28-0)*11*10^{6})$$

anonymous · Answer

What's wrong with OpenStudy equation? I typed in ^-6 and it appeared ^6. Sighhhh

lastdaywork · Answer

@NgoKimPhu 
You should type ^{-6}

anonymous · Answer

@NgoKimPhu how did u come up with that eqn?

anonymous · Answer

@LastDayWork pls help :)

anonymous · Answer

@ankitshaw help ! :)

lastdaywork · Answer

@zaisav 
Do you know the equation for thermal expansion ??

anonymous · Answer

correction: linear coefficient of expansion is 11 x 10^-6 / degreeC

anonymous · Answer

@LastDayWork i think its $$\Delta L = \alpha L \Delta T$$

anonymous · Answer

@hassy  help

anonymous · Answer

@Emineyy help

lastdaywork · Answer

@zaisav 
Will you please stop tagging people ?
& can you find ΔL for this case ??

anonymous · Answer

im not sure. i tried using the formula and i substituted the alpha, L, and delta T, but idk in the delta L

lastdaywork · Answer

The final answer will be (L+ΔL)
So find ΔL from the formula you posted & add it to L

anonymous · Answer

ok i get it now. thank u so much :)

lastdaywork · Answer

:)