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steposvetlana [31]
3 years ago
15

A plane flies from Houston to New York City in 4 hours. The distance it travelled was 1627 miles. What was the average speed of

the plane?
Mathematics
1 answer:
RSB [31]3 years ago
4 0
406.75 an hour because you do 1627/4 and get 406.75
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The American Civil War was a civil war in the United States from 1861 to 1865, fought between northern states loyal to the Union
Sloan [31]

Answer:

The American Civil War was a civil war in the United States from 1861 to 1865, fought between northern states loyal to the Union and southern states that had seceded to form the Confederate States of America.

Why do phase changes occur?

1. Compare: Set the Water temperature to 0 °C and click Play. Observe the water molecules.

Click Reset, set the Water temperature to 100 °C, and click Play again.

What do you notice? The water molecules are moving slightly faster at 100 °C than at 0 °C.

[Note: This difference may be too small to observe easily.]

2. Observe: Click Reset. The mean molecular speed of the water molecules is displayed

below the container. Set the Water temperature to 0 °C and Add/remove heat energy to

400 J/s. Click Play.

A. How does the mean speed of the water molecules change as they are heated?

The average speed of water molecules increases as they are heated.

B. Does the mean molecular speed change as much as the temperature as the

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Sample answer: For each degree of temperature change, the mean molecular

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17% faster than at 0 °C.

3. Explain: How is temperature related to the motions of molecules?

The higher the temperature, the faster the molecules move.

4. Observe: Click Reset. Set the Water temperature to 20 °C and the Ice volume to 50 cc.

Set Add/remove heat energy to 0 J/s. Click Play. How do the molecules in the liquid

interact with the molecules in the solid?

The molecules of the liquid collide with the molecules of solid, gradually breaking the bonds

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Step-by-step explanation:

7 0
2 years ago
Perry connects a blue garden hose and a green garden hose to make one long hose. The blue hose is 10.5 feet. The green hose is 1
swat32

Answer:

22.25 ft long

if you add 10.5 with 11.75 you'll get 22.25

7 0
3 years ago
Franklin Construction Company build a sidewalk around two sides of a new library, as shown in the figure. what is the area of th
PtichkaEL [24]

Answer:

630.36\ ft^2

Step-by-step explanation:

we know that

To find out the area of the sidewalk, multiply the length by the width of the sidewalk

The width of the sidewalk is equal to

113.4\ ft-110\ ft=3.4\ ft

or

75.4\ ft-72\ ft=3.4\ ft

The area is equal to

113.4(3.4)+72(3.4)\\385.56+244.8\\630.36\ ft^2

4 0
3 years ago
the perimeter of a square clock is 16 wholes and 6/9 inches.The perimeter of a rectangular clock is 16 wholes and 16/18 inches.W
sergejj [24]
6/9 and 16/18 is what we will mainly look at since the whole numbers are the same. the common denominator is 18. so you would multiply 6/9 by 2 (both the numerator and denominator multiplied by 2 ) therefore you will get 12/18. Which is bigger 12/18 or 16/18? 16/18 is bigger, therefore you would say sixteen and 6/9 is less than sixteen and 16/18. your answer should be this below. :)
16,6/9 < 16, 16/18.
4 0
3 years ago
Solve for x if log(2x-7) = 0
schepotkina [342]

Answer:

x=4

Step-by-step explanation:

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x = 4

4 0
2 years ago
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