John

An oven loses energy at the rate of 11 W per ∘C temperature difference between its interior and the 19∘C temperature of the kitchen.

question:

What average power must be supplied to maintain the oven at 270∘C

please explain, I tried and got it wrong.

P = 6 * (5.1)^-t

so the question says what is the half life of (P) if (t) is in days.

please explain how to get there.

many cheers

John

ZnS + H2SO4 ===> ?

what are the products

Ionic equation and net ionic equation and states of matter of each one

I messed around with it and ended up with

Zn + SO4 ===> ZnSO4

not sure about this though.

can you please explain in steps.

Thanx

price max $350 - $300

im running an i5 cpu

not thinking of overclocking

just looking for best bang of the $ and gaming.

I have a 20 inch monitor (thinking of replacing it with 24 -27 inch one)

what is your opinion and personal xp

cheers

1) divide 195 in the ratios of 19:9:11

thus 195 = .....cm, .....cm, .....cm ?

2) a box contains screws. the ratio of long screws to short screws is 7:9. the total number of screws is 32 Find the number of long and short screws?

Hi all

please help me find x, somehow my brain got stuck on this one.