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DanielleElmas [232]
3 years ago
15

An organism is composed of several organ systems. Often, the different organ systems work together towards a common purpose. For

example, going for a run requires the use of several different organ systems. List two systems below and describe how they are used while running. *
Physics
2 answers:
asambeis [7]3 years ago
7 0

Answer:

A number of body systems are used when we are running. These systems include the nervous system, skeletal system, muscular system, respiratory system and the circulatory system. When we decide to run, a signal is sent from our brain to our muscles through the nervous system. Once the signal is received, our muscles starts to contract and we start running using our legs. The process of running uses a lot of energy and this energy is provided to us by cellular respiration. We use the respiratory system to bring oxygen into the body, where it interacts with food and generates energy. The carbon dioxide produced is removed by the respiratory system. The gases are transported throughout the body by our circulatory system. Thus, a number of body systems work in conjunction to enable a simple activity like running.

Hope this helps.

Gemiola [76]3 years ago
4 0

Answer:

Skeletal system, muscular system

Explanation:

Skeletal system:

bones

Muscular system:

muscles

Together, they work together and create the musculoskeletal system.

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A 1000 kg car moving a 10 m/s collides with a stationary 2000 kg truck. The two vehicles interlock as a result of the collision.
IgorLugansk [536]

Answer:

v₃ = 3.33 [m/s]

Explanation:

This problem can be easily solved using the principle of linear momentum conservation. Which tells us that momentum is preserved before and after the collision.

In this way, we can propose the following equation in which everything that happens before the collision will be located to the left of the equal sign and on the right the moment after the collision.

(m_{1}*v_{1})+(m_{2}*v_{2})=(m_{1}+m_{2})*v_{3}

where:

m₁ = mass of the car = 1000 [kg]

v₁ = velocity of the car = 10 [m/s]

m₂ = mass of the truck = 2000 [kg]

v₂ = velocity of the truck = 0 (stationary)

v₃ = velocity of the two vehicles after the collision [m/s].

Now replacing:

(1000*10)+(2000*0)=(1000+2000)*v_{3}\\v_{3}=3.33[m/s]

7 0
3 years ago
Consider a heat pump that operates on the reversed Carnot cycle with R-134a as the working fluid executed under the saturation d
Schach [20]

Answer:

Work out = 28.27 kJ/kg

Explanation:

For R-134a, from the saturated tables at 800 kPa, we get

h_{fg} = 171.82 kJ/kg

Therefore, at saturation pressure 140 kPa, saturation temperature is

T_{L} = -18.77°C = 254.23 K

At saturation pressure  800 kPa, the saturation temperature is

T_{H} = 31.31°C = 304.31 K

Now heat rejected will be same as enthalpy during vaporization since heat is rejected from saturated vapour state to saturated liquid state.

Thus, q_{reject} = h_{fg} = 171.82 kJ/kg

We know COP of heat pump

COP = \frac{T_{H}}{T_{H}-T_{L}}

        = \frac{304.31}{304.31-254.23}

         = 6.076

Therefore, Work out put, W = \frac{q_{reject}}{COP}

                                              = 171.82 / 6.076

                                              = 28.27 kJ/kg

8 0
3 years ago
A exaplme of a spoiler in flight <br>​
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Answer:bad?

Explanation:

3 0
2 years ago
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Calculate the energy transferred from a glass of water in order to just melt 100 g of ice cubes at 0°C.
Ludmilka [50]

Answer:

34000 J or 34 kJ

Explanation:

From the question, The energy needed to just melt the ice cube does not requires any external temperature or change in temperature, Hence it is called  latent heat

By Applying,

Q' = C'm........................ Equation 1

Where Q' = Latent heat, C' = Specific latent heat of fusion of water, m = mass of ice.

Given: C' = 340000 J/kg, m = 100 g = 0.1 kg

Substitute into equation 1

Q' = 0.1(340000)

Q' = 34000 J

Q' = 34 kJ

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3 years ago
A student sees a newspaper ad for an apartment that has 1730 square feet (ft2) of floor space. How many square meters of area ar
SVETLANKA909090 [29]

The correct answer for this question is 160.89 m².

The square footage of a newspaper ad for an apartment is = 1730ft²

We know that one square foot equals 0.093 square meters.

We can determine the area in square meters using the above conversion.

Total square meters = 0.093×1730ft² (or) 1730÷10.7 

                                    = 160.89 m²

To know more about conversion calculations, click here:

brainly.com/question/6703327

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6 0
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