The equation for heat I believe is Q = mcΔT or Q=cpmΔT
I am still totally lost. I have no ideas how many joules are in 178,000 calories all this looks pretty foreign to me. I need help breaking this down, to have any chance of passing this test tomorrow.
Homework Statement
The exact question is "how many kg of ice can you melt, assuming it is at the melting point, with 178,000 cal of heat"
Homework Equations
The Attempt at a Solution
I can't give any other imformation. I have know idea where to even, start with solving this...
Convert 17,660 ft/min to mi/hr, ft= feet, min=minutes, mi=miles, hr=hours
I first divided 17,660 feet per minute by 5280 ft then divided that quantity by 60 minutes and got 0.06 miles per hour. What did I do wrong?
Homework Statement
Convert 8.2 x 10 to the 19 power pm to miles
Homework Equations
Convert 1.5 ft to inches
The Attempt at a Solution
I multiplied 8.2 x 10 to the 19 power times 10 to the negative 12 power and then divided it by 1609 and got 5.4 x 10 to the ninth power
No, that was the exact question. I took a Physical Science test and I got it wrong.
1. How many meters will light travel in 83.8 hours?
I totally did not understand the question.
How many meters will light travel in 83.8 hours?
what I came up with is
(3x10 m/s) (83.8hr) = 2.5 14 x 10
answer
2.5 14x10 m
teacher marked it wrong very confused.