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2 years ago

Please do for 30 points its due today. ( if you waste my points i will report.)

Chemistry

1 answer:

finlep [7]2 years ago

5 0

Answer:

Sorry ill put an answer if this is wrong but your asking if its good right?

OK I like it you have really neat hand righting and everything seems organized very well I think you should pass on this its very nice!

Explanation:

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An airplane travels 2100 km at 1000km/hE. It encounters a wind and slows to 800 km/h E for the next 1300 km. What is the average

Deffense [45]

Answer:

The average velocity of the airplane for this trip is 1684.21 km/h

Explanation:

Average velocity is the rate of change of displacement with time. That is,

Average velocity = $\frac{Displacement }{Change in time}$ = Δx / Δt = $\frac{x2 - x1}{t2 - t1}$

Now we will calculate the time taken by the airplane for the first motion before it encounters a wind.

From,

Velocity = $\frac{Distance traveled}{Time taken}$

Time = $\frac{Distance traveled}{Velocity}$

Therefore, Time = $\frac{2100km }{1000km/h}$

Time = 2.1h

This is the time taken before the airplane encounters a wind.

Hence, t1 = 2.1h

Now, For the time taken by the airplane when it encounters a wind

Also from,

Velocity = $\frac{Distance traveled}{Time taken}$

Time = $\frac{Distance traveled}{Velocity}$

Therefore, Time = $\frac{1300km }{800km/h}$

Time = 1.625h

Hence, t2 = 1.625h

Now, to calculate the average velocity

Average velocity = $\frac{x2 - x1}{t2 - t1}$

x1= 2100, x2= 1300, t1= 2.1h and t2= 1.625h

Hence, Average velocity = $\frac{1300 - 2100}{1.625 - 2.1}$

Average velocity = 1684.21 km/h

7 0

3 years ago

When Truman walks across the tile floor in his kitchen, the sound of his shoes is loud and sharp. Which of the following best de

Alexxx [7]

Answer:

Soft and quiet

Explanation:

6 0

2 years ago

What is the sequence of energy transformations that occur in a nuclear reactor?

fredd [130]

B. nuclear to thermal to mechanical to electrical

7 0

3 years ago

Read 2 more answers

You run a 5k for charity. How many feet do you run?

slamgirl [31]

You run approximately 16404 feet.

3 0

3 years ago

What is the Molar Mass of Cs2SO3?

Airida [17]

Answer:

345.89 g/mol

Explanation:

To find the molar mass, find the atomic mass of all the elements from a periodic table.

Cs - 132.91 × 2 = 265.82

S - 32.07

O - 16.00 × 3 = 48.00

Now add them all together.

265.82 + 32.07 + 48.00 = 345.89 g/mol

Hope that helps.

8 0

2 years ago