Explain cannon-boring piece of equipment generates heat

Assignment Help Chemistry

Reference no: EM13498389

Count Rumford observed that nine burning candles generate heat at the same rate that a single horse driven cannon-boring piece of equipment generates heat. James Watt observed that a single horse can raise a 300 lb weight 100 ft. in 1 minute. Using the observations of Watt and Rumford, determine the rate at which a candle generates heat.

They want the answer in Joules/min. I know 1J= (kg*m^2)/s^2. By plugging in the values above (after conversions) For the horse i get 38.62 Joule for the entire job. So would that be 38.62Joules per minute also? This is where I am stuck. I know the ration between the candle and horse, but the answer in the back of the book is different than mine, I think it is because the 38.62 J/min is wrong. Can you help clarify?

Reference no: EM13498389

Questions Cloud

What is the present value of the firm : A firm is expected to earn $100,000 per year forever. If the annual discount rate is 10 percent, what is the present value of the firm?

Explain the initial temp of the water in degrees celcius : The temperature of 50g of water was raised to 60 degrees C. by the addition of 4100 joules of heat energy. What was the initial temp. of the water in degrees Celcius?

Calculate carolines taxable income for the year : Caroline is a 55-year-old Australian resident. She is the chief marketing officer based in Sydney for XYZ Limited (XYZ), a public company listed on the Australian Securities Exchange (ASX).

A typical indifference curve for ryszard is drawn in black : Ryszard consumes two goods, x and y. His utility function is given by u = 4 + x for y >= 4 and by u = x + y for y

Explain cannon-boring piece of equipment generates heat : Count Rumford observed that nine burning candles generate heat at the same rate that a single horse driven cannon-boring piece of equipment generates heat.

What is the present value of the bond : Suppose that there is a bond that will pay $500 for each of the next three years (the first payment is one year from now). At the end of three years the bond matures and the holder receives the $10,000 face value of the bond. If the market ra..

Explain ammonia using the standard enthalpies of formation : Find N-H bond energy in ammonia using the standard enthalpies of formation N(g)=472,7kJ/mol, H(g)=216.0kJ/mol, NH3(g)=-46.1kJ/mol

Explain iron is added to a solution of iron iii sulfate : Powdered Iron is added to a solution of Iron III sulfate, what happens. Please provide a narrative explanation.

Compare the after-tax annual costs : Machine A has been completely overhauled for $9000 and is expected to last another 12 years. The $9000 was treated as an expense for tax purposes last year. Machine A can be sold now for $30,000 net after selling expenses

User Account

All Pages