In the qualifying round of the 50-yd freestyle in the sectional swimming championship, Dugan got an early lead by finishing the first 25.00 yd in 10.01 seconds. Dugan finished the return leg (25.00 yd distance) in 10.22 seconds. Determine Dugan's average velocity for the entire race. Number only, round to the nearest hundredth.

Answers

Answer 1
Answer:

Answer:

v = 0

Explanation:

Given that,

Total distance is 50 yards

Dugan got an early lead by finishing the first 25.00 yd in 10.01 seconds

Dugan finished the return leg (25.00 yd distance) in 10.22 seconds.

We need to find Dugan's average velocity for the entire race. As he returns at the initial position. As a result, the net displacement is equal to 0. So,

Average velocity = net displacement/time

v = 0

Hence, his average velocity for the entire race is 0.

Answer 2
Answer:

Final answer:

Dugan's average velocity for the entire 50 yd race is 2.47 yd/sec, calculated by dividing the total distance (50 yd) by the total time (20.23 sec).

Explanation:

The first step involved is to calculate the total distance that Dugan had covered. In this case, he swam 25 yd twice, making the total distance 50 yd.

Next, we need to find the total time it took Dugan to swim the entire distance. We add the time of the first leg, which is 10.01 seconds, to the time of the return leg, which is 10.22 seconds, providing a total time of 20.23 seconds.

The average velocity is defined as the total distance divided by the total time. So, for Dugan, it would be 50 yd divided by 20.23 sec, which equals 2.47 yd/sec (rounding to the nearest hundredth).

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What could you do to change the volume of a gas?

Answers

People are going to tell you about heating or cooling the gas, but
there's only one way to change the volume of a gas:  Put it into a
different container !

A gas always expands to fill whatever you keep it in ... doesn't matter
how warm or cold it is.  So the only way to make it change its volume
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In two to four paragraphs, explain what happened musically as Britten introduced the orchestral instruments:

Answers


-- Unless I miss my guess, the phrase "In two to four paragraphs,
explain ..." sounds like you want somebody to write a nice essay
for you, which you will then write your name at the top of and hand
it in as your own work.  Are you sure you want to adopt this process
as a substitute for actually learning stuff ?
 
-- Sadly, you can probably forget about offering 5 points and getting
two to four paragraphs in return.

-- Another hunch of mine:  You're referring to the "Young Person's
Guide to the Orchestra" ... a fugue and variations based on the
Rondeau from Henry Purcell's incidental music to Aphra Behm's
Abdelazar, composed by Benjamin Britten in 1946 for elementary
music education.  The subject may not be too familiar to the people
who like to hang out here in the <Physics> category.  You might
stand a better chance if you post the question again in <Arts> or
even <Social Studies>.  I don't know of a way to 'move' a question
on Brainly, so you'll have to actually post it again ... and this time,
see if you can spare a few more points for an answer.

Answer:

Britten used a variety of instruments from different families and changed the traditional order. He started with the woodwinds, then strings, then brass, and percussion. He started with the highest pitched instruments in each of the families. This made the differences in the timbers of different sections of the orchestra more clear.

but he is right add more points next time you ask someone to do your work for you

Explanation:

A 20.0-cm long pipe is covered at one end in order to create a closed-end air column. A vibrating tuning fork is held near its open end, forcing the air to vibrate in its first harmonic. The wavelength of the standing wave pattern is ____.

Answers

Answer:

80 cm

Explanation:

the given condition is closed-end air column. The wavelength is four times the length of the air column for the standing wave pattern for the first harmonic.  

The required wavelength of the standing wave pattern is

=\lambda =4L\n\lambda=4 * 20\n\lambda=80 cm

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Answers

The correct answer is the chemical formula. The chemical formula is the expression of the chemical composition of a compound. It is the way of expressing the details about the atoms' proportion that constitutes a specific chemical compound.

Practical examples of radition​

Answers

Basically anything thats hot like the sun,microwave,fire,ect.

Ilya and Anya each can run at a speed of 8.90mph and walk at a speed of 3.80mph . They set off together on a route of length 5.00miles. Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half.a)How long does it take Anya to cover the distance of 5.00miles ?
Express your answer numerically, in minutes.
b)Find Anya's average speed.
Express Anya's average speed save,Anya numerically, in miles per hour
C)How long does it take Ilya to cover the distance?
Express the time tIlya taken by Ilya numerically, in minutes.
d)Now find Ilya's average speed.
Express Ilya's average speed save,Ilya numerically, in miles per hour

Answers

Answer:

Part a)

T = 0.94 hours

Part b)

v_(avg) = 5.32 mph

Part c)

T = 0.79 h

Part d)

v_(avg) = 6.35 mph

Explanation:

Speed while she is running = 8.90 mph

speed while she walk = 3.80 mph

Part a)

Anya walks half the distance

so time to walk

t_1 = (2.5)/(3.80) = 0.66 h

time to cover the distance while she run

t_2 = (2.5)/(8.90) = 0.28 h

total time to cover the distance

T = t_1 + t_2

T = 0.94 hours

Part b)

Average speed is given as

v_(avg) = (d)/(t)

v_(avg) = (5.00 miles)/(0.94)

v_(avg) = 5.32 mph

Part c)

Half the time Llya walks and next half the time she runs

so total distance is given as

d = v_1(T/2) + v_2(T/2)

so we have

5.00 = 8.90(T/2) + 3.80(T/2)

T = 0.79 h

Part d)

Average speed is given as

v_(avg) = (d)/(t)

v_(avg) = (5.00 miles)/(0.79)

v_(avg) = 6.35 mph