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nignag [31]
1 year ago
10

12000 inches to yards

Physics
1 answer:
Nutka1998 [239]1 year ago
4 0

ANSWER

\begin{equation*} 333.33\text{ yds} \end{equation*}

EXPLANATION

We want to convert 12000 inches to yards.

To do this, divide the value in inches by 36:

\begin{gathered} 1\text{ in }=\frac{1}{36}\text{ yd} \\  \\ 12000\text{ in }=\frac{12000}{36}\text{ yds }=333.33\text{ yds} \end{gathered}

That is the answer.

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t = 6.63 s

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Given that,

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v = u +at

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So,

u=-at\\\\t=\dfrac{u}{-a}\\\\t=\dfrac{7.3}{-(-1.1)}\\\\t=6.63\ s

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3 years ago
Why do scientists believe that light is made of streams of particles?
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which of these statements best explains why the difference between summer and winter temperatures is greatet in Russia thanin FL
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5 0
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The perihelion of the comet TOTAS is 1.69 AU and the aphelion is 4.40 AU. Given that its speed at perihelion is 28 km/s, what is
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Answer:

The speed at the aphelion is 10.75 km/s.

Explanation:

The angular momentum is defined as:

L = mrv (1)

Since there is no torque acting on the system, it can be expressed in the following way:

t = \frac{\Delta L}{\Delta t}

t \Delta t = \Delta L

\Delta L = 0

L_{a} - L_{p} = 0

L_{a} = L_{p}   (2)

Replacing equation 1 in equation 2 it is gotten:

mr_{a}v_{a} =mr_{p}v_{p} (3)

Where m is the mass of the comet, r_{a} is the orbital radius at the aphelion, v_{a} is the speed at the aphelion, r_{p} is the orbital radius at the perihelion and v_{p} is the speed at the perihelion.          

From equation 3 v_{a} will be isolated:    

v_{a} = \frac{mr_{p}v_{p}}{mr_{a}}

v_{a} = \frac{r_{p}v_{p}}{r_{a}}   (4)    

Before replacing all the values in equation 4 it is necessary to express the orbital radius for the perihelion and the aphelion from AU (astronomical units) to meters, and then from meters to kilometers:

r_{p} = 1.69 AU x \frac{1.496x10^{11} m}{1 AU} ⇒ 2.528x10^{11} m

r_{p} = 2.528x10^{11} m x \frac{1km}{1000m} ⇒ 252800000 km

r_{a} = 4.40 AU x \frac{1.496x10^{11} m}{1 AU} ⇒ 6.582x10^{11} m

r_{p} = 6.582x10^{11} m x \frac{1km}{1000m} ⇒ 658200000 km  

     

Then, finally equation 4 can be used:

v_{a} = \frac{(252800000 km)(28 km/s)}{(658200000 km)}

v_{a} = 10.75 km/s

Hence, the speed at the aphelion is 10.75 km/s.

       

8 0
3 years ago
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