It takes John 1.5 hours to ride a distance of 17 kilometers on his bike. John wants to
calculate his average speed during the journey.
Which is an appropriate unit for his average speed?
hr/km
km/hr
km
hr

Answer:

This question is incomplete, the complete question is;

A tube is being stretched while maintaining its cylindrical shape. The height is increasing at the rate of 2 millimeters per second. At the instant that the radius of the tube is 6 millimeters, the volume is increasing at the rate of 96π cubic millimeters per second. Which of the following statements about the surface area of the tube is true at this instant? (The volume V of a cylinder with radius r and height h is V=πr2h. The surface area Sof a cylinder, not including the top and bottom of the cylinder, is S=2πrh.)

A) The surface area is increasing at the rate of 28pi square mm per second.

B) The surface area is decreasing at the rate of 28pi square mm per second.

C) The surface area is increasing at the rate if 32pi square mm per second.

D) The surface area is decreasing at the rate of 32pi square mm per second.

Answer:

Surface Area is increasing at the rate of 28π mm²/sec  ( Option A )

Explanation:

Given the data in the question;

let r be the radius and h be the height of the tube

so volume V = πr²h

dv/dt = πr² dh/dt + 2nrh dr/dt

⇒ 96n = π × 36 × 2 + 2π × 6h dr/dt

⇒ 24π = 12nh dr/dt ⇒ h.dr/dt = 2

Area Surface S = 2nrh

ds/dt = 2π ( r.dh/dt + h.dr/dt )

= 2π ( 6×2 + 2)

= 2π (14)

= 28π

therefore Surface Area is increasing at the rate of 28π mm²/sec ( Option A )

Answer:

4 leght the button is 3 length

Explanation:

if you don't understand here's my link

https//com. ph

Answer:

[tex]\mathrm{9.08 \times 10^6 \:km}[/tex]

Explanation:

To solve for the distance between the probe and  the center of Venus, use the formula:

[tex]\mathrm{F = \frac{G\: m1 \:m2}{r^2}}[/tex]

Plugin the values:

G =

[tex]6.67\times10^{-11} \mathrm{\frac{m3}{kg\: s2}}[/tex]

[tex]\mathrm{F} =2.58 \times 10^3\mathrm{N}[/tex]

[tex]\mathrm{m1 = 4.87 \times 10^{24}\:kg}[/tex]

[tex]\mathrm{m2 = 655\: kg}[/tex]

Hence:

[tex]\mathrm{F = \frac{G\: m1 \:m2}{r^2}}[/tex]

[tex]2.58 \times 10^{23} = 6.67 \times 10^{-11} (4.87 \times 10^{24})[/tex]

[tex]\frac{(655)}{r^2}[/tex]

[tex]\mathrm{r = 9.08 \times 10^6 \:km}[/tex]

Look at the graph

___________

The boundary of S is the unit circle C in the (x, y) plane with equation x² + y² = 1, which we can parameterize by

r(t) = x(t) i + y(t) j + z(t) k

with 0 ≤ t ≤ 2π, where

x(t) = cos(t)

y(t) = sin(t)

z(t) = 0

so that

dr = (dx/dt i + dy/dt j + dz/dt k) dt = (sin(t) i - cos(t) j) dt

By Stokes' theorem, the surface integral of the curl of F across S is equal to the line integral of F along C :

[tex]\displaystyle \iint_S \mathrm{curl} F \cdot d\vec s = \int_C \vec F \cdot d\vec r[/tex]

We have

[tex]\vec F(x(t), y(t), z(t)) = \sin^2(t) \, \vec\jmath + \sin(t) \cos(t) \, \vec k[/tex]

[tex]\implies \vec F \cdot d\vec r = -\sin^2(t)\cos(t) \, dt[/tex]

so the line integral is

[tex]\displaystyle \int_C \vec F \cdot d\vec r = - \int_0^{2\pi} \sin^2(t) \cos(t) \, dt[/tex]

Substitute u = sin(t) and du = cos(t) dt :

[tex]\displaystyle \int_C \vec F \cdot d\vec r = - \int_0^0 u^2 \, du = \boxed{0}[/tex]

Answer:

I hosted a birthday party last sunday and the guests wreaked hovoc on my house!

Answer:

The astronaut was asleep longer on earth then he was in space

Explanation:

calculate the boring stuff (speed, time) and it shows that he was asleep for a greater value in space

Answer:

option B

Explanation:

Answer:

B

Explanation: is the best answer

Answer :AlAg3 + Cl2

Explanation:

Al + AgCl Upper N a upper C l subscript 2 right arrow.  ?

The complete chemical equation would be as follows:

[tex]AlAg_{3} + Cl_{2}[/tex]

Thus, the complete equation would read as "[tex]AlAg_{3} + Cl_{2}[/tex]."

Learn more about "Chemical Reaction" here:

brainly.com/question/1689737

Answer:

thanks po

Explanation:

yes po thanks salamat kamsamhida arigato

Answer:

to summarize, wrap up and put a end to a text or essay.

Explanation:

Answer:

Son

Explanation:

Just got 100%, but further explanation: Es and esta are both easy to rule out, as neither of them refers to "they" (Alan y Enrique), and estan does not work because of the weird rules. Tbh I feel like you just have to memorize them except in some cases where one just clearly makes more sense than the other.

Answer: Pick answer C: "son"

Answer:democracy

Explanation:

The idea of the American revolution did Bolivar think would not work for South America is democracy. The correct option is a.

Because of the American Revolution, true democratic politics became conceivable throughout the former colonies. In fact, the drafting of written state constitutions in 1776 and 1777 was the most important immediate result of America proclaiming independence.

The American Revolution ended in 1783, and the French Revolution began in 1789; however, the French Revolution was more complicated than the American Revolution.

The protest began in response to the British monarchy and Parliament levying taxes without regard for colonial representation.

Therefore, the correct option is a. democracy.

To learn more about the American revolution, refer to the below link:

https://brainly.com/question/12430957

#SPJ5

Answer:

sancho

Explanation:

answers for the whole quiz -

1. true

2. false

3. a parrot

4. while he was hiding out

5. sancho

YOURE WELCOME

Sancho's detective seems to have more clues about solving the case. Thus option B is correct.

Detectives are typically investigative people, which implies that they are extremely inquiring and curious people who enjoy spending time by themselves thinking. An investigator who works for a law enforcement agency is known as a detective.

Talking to witnesses and whistleblowers, gathering tangible evidence, reviewing databases, and interviewing sources are all common ways that investigators get information to solve crimes.

You've come to the right place if you're seeking for the Sancho from a Cervantes narrative crossword clue answers. Please double-check that you have the right answer or clue because it's common for crossword puzzles with similar clues to have disparate solutions. As a result, they are able to apprehend offenders and prosecute them at court. Therefore, option B is the correct option.

Learn more about detective, Here:

https://brainly.com/question/16604397

#SPJ5

The dimensions of the cylinder that has the maximum volume can be

found be finding the maximum value of the volume function.

Reasons:

The known parameter of the hemisphere are;

The radius of the hemisphere = 8

Required;

The radius and height of the maximum volume of the inscribed cylinder.

Solution:

Let h represent the height of the cylinder, and let r represent the radius of

the cylinder, we have;

r² + h² = 8²

Therefore;

r² = 8² - h² = 64 - h²

r² = 64 - h²

The volume of the cylinder, V = π·r²·h = π·(64 - h²)·h

V(h) = π·(64·h - h³)

At the maximum volume, we have;

[tex]\dfrac{dV(h)}{dh} = \dfrac{d}{dh} \left(\pi \cdot \left(64 \cdot h - h^3 \right) \right) = \pi \cdot \left(64 - 3 \cdot h^2 \right) = 0[/tex]

64 - 3·h² = 0

64 = 3·h²

[tex]h =\sqrt{\dfrac{64}{3} } = \dfrac{8}{\sqrt{3} }[/tex]

[tex]\underline{\mathrm{The \ height \ of \ the \ cylinder, \ h} = \dfrac{8}{\sqrt{3} }}[/tex]

[tex]r^2 = 64 - \dfrac{64}{3} = \dfrac{128}{3}[/tex]

[tex]r =\sqrt{\dfrac{128}{3}} = \dfrac{8 \cdot \sqrt{6} }{3}[/tex]

[tex]\underline{\mathrm{The \ radius \ of \ the \ cylinder, \ } r = \dfrac{8 \cdot \sqrt{6} }{3}}[/tex]

Learn more here:

https://brainly.com/question/14104351

Answer:

$95,300. C

Explanation:

Answer:

answer is C

Explanation:

Answer:

The reduction means ???

Explanation:

What to say

Answer:

What trajectories may precipitation travel after it falls on land? It either soaks into the earth through infiltration, pours over the surface as runoff, or evaporates instantly.

Explanation:

Answer:

Gnocchi is not a traditional food found in Uruguay.

Explanation:

Considering the Hess's Law, the enthalpy change for the reaction is 790 kJ/mol.

Hess's Law indicates that the enthalpy change in a chemical reaction is the sum of the ∆H of each stage of the reaction will give us a value equal to the ∆H of the reaction when it occurs in a single stage.

In this case you want to calculate the enthalpy change of:

C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s)

You know the following reactions, with their corresponding enthalpies:

Equation 1: 2 Sr (s) + O₂ (g) → 2 SrO (s) ∆H° = -1184 kJ/mol

Equation 2: CO₂ (g) → C (s) + O₂ (g) ∆H° = 394 kJ/mol  

In this case, first, to obtain the enthalpy of the desired chemical reaction you need 1 mole of C (s) on reactant side and it is present in second equation. But since this equation has 1 mole of C (s) on the product side, it is necessary to locate this on the reactant side (invert the reaction). And when an equation is inverted, the sign of ΔH also changes.  

Now, 2 moles of SrO (s) must be a reactant and is present in the first equation. Since this equation has 2 moles of Sr0 (s) on the product side, it is necessary to locate the O on the reactant side (invert the reaction) and the sign of ΔH changes.

In summary, you know that two equations with their corresponding enthalpies are:

Equation 1:  2 SrO (s) → 2 Sr (s) + O₂ (g)     ∆H° = 1184 kJ/mol

Equation 2: C (s) + O₂ (g) → CO₂ (g)     ∆H° = -394 kJ/mol

Adding or canceling the reactants and products as appropriate, and adding the enthalpies algebraically, you obtain:

C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s)     ΔH= 790 kJ/mol

Finally, the enthalpy change for the reaction is 790 kJ/mol.

Learn more:  

Answer:

an expansion of growth and maturity but also deforming backwords in a way

Answer: very simple

Explanation: I just did it

Answer:

Question

Let random variable x represent the number of movies screening at movie theaters in a certain city. The following table shows the cumulative probability distribution of the discrete random variable x.

Explanation:

Answer:

Explanation:

The folktale "The Tiger´s Whisker" originates from Korea, and it is used mostly as a child´s tale. It narrates the story of Yun Ok, whose husband has changed drastically from a loving, and gentle man, to an irrascible one, thanks to the wars. In desperation, Yun Ok, goes to a hermit and asks for a potion. The man tells her that in order to do so, she must bring a whisker from a live tiger. Yun Ok does as she is told, and patiently gains the trust of a tiger, and gets the needed whisker. In the end, she finds out that the lesson the hermit wanted her to learn was that to regain her husband, she needed to apply the same technique she used on the tiger, and not a potion. Given this background, the answers would be thus:

1. A folktale is defined precisely as: A story that is often passed along by word of mouth from one generation to another. This is the correct answer.

2. In this question, the answer is: Her husband has become very distant since he returned from war. This is what is narrated in the story as the reason for Yun Ok´s husband´s estrangement.

3.  The correct answer here is: He laughs at Yun Ok´s idea because he thinks she is foolish to believe that solving the problem with her husband could be so simple. Though not directly stated, the hermit does laugh in a way when he says to Yun Ok that healing her husband with a potion is not like taking care of an ear infection. And he makes her feel somewhat foolish for her request. But she insists and he gives in.

4. The answer to this question is: She decides that reconnecting with her husband is worth the risk. This is stated in the story when Yun, although afraid, still continues persistently to go after the tiger, always keeping in mind that all is for the benefit of herself and her husband.

5. The answer here is: She learns that through patience, she can win her husband´s trust and heart like she earned the trust of the tiger. This is the lesson she learns when the hermit burns the whisker and makes her reflect on how she was able to get it from a wild tiger, saying that a man cannot be fiercer, or more difficult, than a tiger.

6.  The answer here is: She is patient and demonstrates perseverance by spending six long months, slowly getting the tiger to trust her before she plucks out his whisker. This is exactly what she does in the story. She spends every day of those six months, carefully gaining the tiger´s trust, until he allows her near, and then allows her to take his whisker.

Answer:

there no image

Explanation:

Answer:

3rd

Explanation:

Answer:

True

Explanation:

Answer:

True

Explanation:

As on Edu 2022

To drive this equilibrium in the forward direction, for a saturated solution, the temperature of the system must be increased.

We have been told that the reaction;  Zn(OH)2 ( s ) ⇄ Zn2+(aq) + 2OH − (aq), is an endothermic reaction. Recall that in an endothermic reaction, energy is absorbed and the energy of the products is greater than that of the reactants.

In order to drive this equilibrium in the forward direction, for a saturated solution, we can Increase the temperature of the solution. More Zn(OH)2 will dissolve in the solution.

Learn more: https://brainly.com/question/4933048

Answer:

I THINK 43('_) AND 34

Explanation:

Answer: Before you start writing, remind yourself of the basic composition composition. Almost all articles have three parts: introduction, body of information and conclusion. The five-paragraph text is a common repetition of this and includes an introductory paragraph, three body paragraphs, and a conclusion paragraph.

Explanation: