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emmainna [20.7K]
4 years ago
12

If It takes Ashley 3 seconds to run from the batters box to first base at an average speed (velocity) or 6.5 meters per second,

what is the distance she covers in that time?
Physics
1 answer:
navik [9.2K]4 years ago
4 0

Answer:

So, the Distance covered by Ashley in 3 second is 19.5 meters.

Explanation:

Given:

Ashley takes 3 seconds to run from the batters box to first base at an average speed (velocity) or 6.5 meters per second.

So, Time = 3 s

Average Speed = 6.5 m/s

To Find:

Distance Ashley covers in time 3 s = ?

Solution:

Average Speed:

Average speed is defined as the rate of total distance covered in that time.

i.e

\textrm{Average speed}= \frac{Distance}{Time}

On substituting the given values we get

6.5=\frac{Distance}{3} \\\\\therefore Distance = 6.5\times 3\\\\\therefore Distance = 19.5\ meters

So, the Distance covered by Ashley in 3 second is 19.5 meters.

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What does the term conclude mean
matrenka [14]

Answer:

Meaning to bring ssomething to an end

Explanation:

For example if someone is wrapping up an essay a common phrase used is "In conclusion" (conclude beinf that base word) when restating their arguement.

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3 years ago
Scientists want to place a 3 x 130 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to
Arada [10]
I think it’s a because if u do the math that’s what it says
7 0
3 years ago
A 3.4kg aluminium ball has an apparent mass of 2.10kg when submerged in a particular liquid. Calculate the density of the liquid
Shalnov [3]

Answer:

1083.3kg/m ³

Explanation:

Given parameters:

Mass of aluminium ball = 3.4kg

Apparent mass of ball = 2.1kg

Unknown:

Density of the liquid = ?

Solution:

Density is is the mass per unit volume of any give substance;

         Density = \frac{mass}{volume}

     Now, we must understand that the apparent weight of the aluminium is the part of its weight supported by the fluid;

     

   Pl = \frac{Ml}{Vl}

   Pl = density of liquid

   Ml = mass of liquid

   Vl = volume of liquid

 Mass of liquid = Mal - Mapparent

       Mal = mass of aluminium

The volume of liquid displaced is the same as the volume of the aluminium according to Archimedes's principle;

              Ml = Pl x Vl

      Val = Vl

      Val volume of aluminium

      Vl = volume of liquid

            ****

        Pal = \frac{Mal}{Val}

       Val = \frac{Mal}{Pal}

       Val = volume of aluminium

       Mal = mass of aluminium

       Pal = density of aluminium

   *****

      Since the Val = Vl

          Ml = Pl x \frac{Mal}{Pal}

    Since

          Ml = Mal - Mapparent

                Mal - Mapparent  = Pl  x \frac{Mal}{Pal}

Pal = density of aluminium = 2712 kg/m ³

             3.4 - 2.1 = Pl x \frac{3.4}{2712}

                 1.3 = Pl x 0.00123

                    Pl = 1083.3kg/m ³

       

5 0
3 years ago
A 0.600 kg block is attached to a spring with spring constant 15 N/m. While the block is sitting at rest, a student hits it with
gulaghasi [49]

Answer:

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Explanation:

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x = Compression of spring

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\dfrac{1}{2}mv^2=\dfrac{1}{2}kA^2\\\Rightarrow A=\sqrt{\dfrac{mv^2}{k}}\\\Rightarrow A=\sqrt{\dfrac{0.6\times 0.44^2}{15}}\\\Rightarrow A=0.088\ m\\\Rightarrow A=8.8\ cm

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Again, as the energy of the system is conserved we have

\dfrac{1}{2}kA^2=\dfrac{1}{2}mv^2+\dfrac{1}{2}kx^2\\\Rightarrow v=\sqrt{\dfrac{k(A^2-x^2)}{m}}\\\Rightarrow v=\sqrt{\dfrac{15(0.088^2-(0.7\times 0.088)^2)}{0.6}}\\\Rightarrow v=0.31422\ m/s

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3 0
3 years ago
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