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Vladimir [108]
3 years ago
14

All life on earth exists in a region known as

Physics
1 answer:
docker41 [41]3 years ago
7 0

Hello There!

All life on Earth exists in a region called the biosphere.

The biosphere is known as the global sum of all ecosystems. It's called the "zone of life"

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Suppose that the radius of the circular path is r when the speed of the rocket is v and the acceleration of the rocket has magni
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Fred is conducting a controlled experiment to test whether using a grow light at night will help a tomato plant grow faster. Bel
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the type of tomato plants used.

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The equation for distance is d = st i. If a car has a speed of 22.3 m/s and drives for 8.5 seconds, how far does it go? (1 point
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= 22.3 × 8.5

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2 years ago
A block of mass m is hung from the ceiling by the system of massless springs consisting of two layers. The upper layer consists
alukav5142 [94]

Answer:

  T₀ = 2π \sqrt{\frac{m}{k} }           T = \sqrt{\frac{5}{6} } T₀

Explanation:

When the block is oscillating it forms a simple harmonic motion, which in the case of a spring and a mass has an angular velocity

        w = \sqrt{k/m}

To apply this formula to our case, let's look for the equivalent constant of the springs.

Let's start with the springs in parallels.

* the three springs in the upper part, when stretched, lengthen the same distance, therefore the total force is

       F_total = F₁ + F₂ + F₃

the springs fulfill Hooke's law and indicate that the spring constant is the same for all three,

       F_total = - k x - k x - kx = -3k x

         

therefore the equivalent constant for the combination of the springs at the top is

      k₁ = 3 k

* the two springs at the bottom

following the same reasoning the force at the bottom is

        F_total2 = - 2 k x

the equivalent constant at the bottom is

         k₂ = 2 k

now let's work the two springs are equivalent that are in series

the top spring is stretched by an amount x₁ and the bottom spring is stretched x₂

            x₂ = x -x₁

            x₂ + x₁ = x

if we consider that the springs have no masses we can use Hooke's law

            -\frac{F_{1} }{k_{1} } - \frac{F_{2}}{k_{2} }  =  \frac{F}{k_{eq} }

therefore the equivalent constant is the series combination is

             \frac{1}{k_{eq} }  = \frac{1}{k_{1} } + \frac{1}{k_{2} }

we substitute the values

             \frac{1}{k_{eq} }  = \frac{1}{3k } + \frac{1}{2k }  

             \frac{1}{k_{eq} }  = \frac{5}{6k} }  

              k_eq = \frac{6k}{5}  

therefore the angular velocity is

             w = \sqrt{\frac{6k}{5m} }  

           

angular velocity, frequency, and period are related

           w = 2π f = 2π / T

           T = 2π / w

            T = 2π \sqrt{\frac{5m}{6k} }

           T₀ = 2π \sqrt{\frac{m}{k} }

           T = \sqrt{\frac{5}{6} } T₀

8 0
2 years ago
Maya uses a tuning fork of frequency 250 Hz to produce transverse wave on a stretched string. Her friend justin measure the dist
Viktor [21]

Answer:6.25m/s

Explanation:

V=F*lander

V=FL/2=250*0.05/2

7 0
2 years ago
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