3 years ago

(c) If η = 60% and TC = 40°F, what is TH, in °F?

Physics

1 answer:

arlik [135]3 years ago

5 0

2b2t hope that helps

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6 meters is left because you subtract 12 meters from 6

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3 years ago

Write down at least 3 equations as you solve them

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Answer:

3+7= 7x3= 21➗7=

Explanation:

3+7= 10 7 8 9 10

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2 years ago

when a circular plate of metal is heated in an oven, its radius increases at .03 cm/min, at what rate is the area increasing whe

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Answer:

Rate of change of area will be $9.796cm^2/min$

Explanation:

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3 years ago

How much work must be done to stop a 1100-kg car traveling at 112 km/h?(Hint: You will need to convert the speed first.)Answer:

zimovet [89]

According to the Work-Energy Theorem, the work done on an object is equal to the change in the kinetic energy of the object:

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Since the car ends with a kinetic energy of 0J (because it stops), then the work needed to stop the car is equal to the initial kinetic energy of the car:

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Replace m=1100kg and v=112km/h. Write the speed in m/s. Remember that 1m/s = 3.6km/h:

$\begin{gathered} K=\frac{1}{2}(1100kg)\left(112\frac{km}{h}\times\frac{1\frac{m}{s}}{3.6\frac{km}{h}}\right)^2=532,345.679...J \\ \\ \therefore K\approx532,346J \end{gathered}$

Therefore, the answer is: 532,346 J.

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1 year ago

If you have two wires made out of the same material and the same thickness, one is 3-inches long and one is 6-inches long, which

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Answer:

3 inch long wire

Explanation:

it is shorter

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3 years ago

Read 2 more answers