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3 years ago

Why are slow twitch muscles more beneficiall than fast twitch mucles for cardiorespiratory fitness

Physics

2 answers:

Dmitriy789 [7]3 years ago

4 0

Answer:

otherwise known as option D

Explanation:

Lady_Fox [76]3 years ago

4 0

Answer:

D Slow-twitch muscles are able to use oxygen more efficiently than fast-twitch muscles.

is the answer

Explanation:

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Suppose you lift a 20 kg box by a height of 1.0 m.

9966 [12]

W=mgh W=(20)(9.8)(1) w=196J

6 0

3 years ago

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At an accident scene on a level road, investigators measure a car’s skid mark to be 88 m long. The accident occurred on a rainy

Oduvanchick [21]

Answer:

The the speed of the car is 26.91 m/s.

Explanation:

Given that,

distance d = 88 m

Kinetic friction = 0.42

We need to calculate the the speed of the car

Using the work-energy principle

work done = change in kinetic energy

$W=\Delta K.E$

$\mu\ mg\times d=\dfrac{1}{2}mv^2$

$v^2=2\mu g d$

Put the value into the formula

$v=\sqrt{2\times0.42\times9.8\times88}$

$v=26.91\ m/s$

Hence, The the speed of the car is 26.91 m/s.

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3 years ago

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You need to connect your doorbell to a battery. You should select wire that will

Harlamova29_29 [7]

Run electrity through or is postive to the circuit

6 0

3 years ago

A stone is thrown with an initial speed of 11.5 m/s at an angle of 50.0 above the horizontal from the top of a 30.0-m-tall build

rewona [7]

Answer:

The magnitude of the horizontal displacement of the rock is 7.39 m/s.

Explanation:

Given that,

Initial speed = 11.5 m/s

Angle = 50.0

Height = 30.0 m

We need to calculate the horizontal displacement of the rock

Using formula of horizontal component

$v_{x}=u\cos\theta$

Put the value into the formula

$v_{x}=11.5\times\cos50$

$v_{x}=7.39\ m/s$

Hence, The magnitude of the horizontal displacement of the rock is 7.39 m/s.

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3 years ago

Magnesium is a highly flammable element which is easily combustible in the presence of oxygen:

NemiM [27]

4 atoms

Explanation:

On the product side, we expect to find 4 atoms of the product.

An atom is the smallest indivisible particle that takes part in a chemical reaction.

An element is a distinct substance that cannot be split-up into simpler substances. Such substances consist of only one kind of atom.

In this reaction we have:

2 elements: Mg O

on the reactant side:

We have two moles of Mg: 2 atoms of Mg

1 mole of oxygen gas: 2 atoms of O

total atoms: 4 atoms

According to the law of conservation of matter "in a chemical reaction, matter is neither created nor destroyed".

We expect to find 4 atoms of products which is MgO on the product side.

2Mg + O₂ → 2MgO + heat

Learn more:

Conservation of matter brainly.com/question/2190120

#learnwithBrainly

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3 years ago

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