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Montano1993 [528]
3 years ago
5

Work = Force x Distance, calculate the amount of work done on an object

Chemistry
1 answer:
nalin [4]3 years ago
7 0

Answer:

3000 Joules

Explanation:

as you mentioned, w=fd

where w is the work done, in this scenario in the unit of Joules

the force, or f, is given to be 300N

the distance, or d, is given to be 10m

because joules is simplified to Newtons times Meters, all we need to do in this case is plug the givens into the equation.

so, 300 Newtons x 10 Meters = 3000 Joules

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Fossils are the preserved remains or traces of an organism that used to be alive.
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Answer:

This is True

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How many SO2 molecules are in 1.76 mol of SO2? How many sulfur atoms and oxygen atoms are there?
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2 years ago
1. An electric power plant uses energy from burning coal to generate steam at 450 °C. The plant is cooled by 20 °C water
kap26 [50]

Answer:

Explanation:

Efficiency of the electric power plant is e=1-\frac{T_{2}}{T_{1}}

Here Temperature of hot source T_{1} = 450^{o}C=450+273=723 K

and Temperature of sink T_{1} = 20^{o}C=20+273=293 K

Hence the efficiency is  e=1-\frac{293}{723}=0.5947=59.47%

Now another formula for thermal efficiency Is

e_{therm}=\frac{Q_{1}-Q_{2}}{Q_{1}}=\frac{W}{Q_{1}}

Here QI is the of heat taken from source 100 MJ ; Q2 of heat transferred to the sink (river) to be found

W is the of work done and W = QI -Q2

Hence Frome_{therm}=\frac{Q_{1}-Q_{2}}{Q_{1}}=\frac{W}{Q_{1}}

W=e(Q_{1})=(0.5947)(100)=59.47MJ

Hence the of heat transferred to the river Is Q_{2} -W = (100 -59.47=40.53

6 0
3 years ago
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