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Ymorist [56]
3 years ago
13

A good sign that cardiovascular exercise is occurring is that you _____.

Physics
2 answers:
grigory [225]3 years ago
4 0
Are breathing hard. This is because cardiovascular exercise makes the heart beat faster which in turn creates a need for more air.
EleoNora [17]3 years ago
4 0

Answer: are breathing much faster

Explanation:

Exercise is a physical activity which increases the rate of respiratory and cardiovascular activity of the body. The cardiovascular exercise is likely to increase the rate at which the heart pumps blood as the body faces the scarcity of oxygen in the muscles which conducts the exercise. This increases rate of breathing so as to acquire more amount of oxygen. The oxygenated blood is pumped by the heart to all the parts of the body.

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Astronomers have proposed the existence of an unexplained force that is causing the expansion of the universe to accelerate. Wha
Alik [6]
4. Dark Energy. This is the mysterious force causing the expansion of space. No one has ever seen this force.
4 0
3 years ago
Read 2 more answers
Work output of a large machine in a factory is 89,000 joules, and it’s input is 102,000 joules. Work output of a similar machine
mojhsa [17]
(89000/102000)×100
=87.25%

(92000/104000)×100
=88.46%

efficiency is (output/input)×100
if u get confused which way input and output should go, remember the smaller value is always output and it's above in the fraction, then only it's possible to get a efficiency lower than 100.

7 0
3 years ago
Read 2 more answers
If approximately equal volumes of an acid and a bace of a equal strength are combined the resulting solutin should have a pH of
Phoenix [80]

The answer is around 7.

As the acid and the base are of equal strength, they neutralize each other and the resulting solution is neutral (pH≈7).

Hope this helps you!

3 0
3 years ago
Read 2 more answers
A. Obtain the following: microwave, ruler, something meltable (e.g. candy bar, marshmallows) B. A microwave works by setting up
Makovka662 [10]

Answer:

E = 124.7 N / C

Explanation:

Let's analyze the exercise: the microwave creates an electromagnetic wave of frequency F = 2.45 GHz, this wave is introduced into the microwave cavity and is reflected on the metal walls, which is why one or more standing waves are formed.

The electric field of the standing wave is

            I = E²

            E =√I

where I is the intensity of the radiation.

What is it

             I = P / A

where P is the effective emission power, almost all the power of the microwave and A is the area of ​​the cavity, in the most used microwaves

P = 700 W and the area is A = 25 x 18 cm² = 0.045 m²

             I = 700 / 0.045

             I = 15555.56 W/m²

let's calculate the electric field

            E = √15555.56

            E = 124.7 N / C

7 0
3 years ago
What is the ACCELERATION of a 50 kg object pushed with a force of 500 newtons *
Anon25 [30]

Answer:

The answer is

<h2>10 m/s²</h2>

Explanation:

To find the acceleration of an object given the force and mass we use the formula

<h3>acceleration =  \frac{force}{mass}</h3>

From the question

mass of object = 50 kg

force = 500 N

So the acceleration is

<h3>acceleration =  \frac{500}{50}  \\  =  \frac{50}{5}</h3>

We have the final answer as

<h3>10 m/s²</h3>

Hope this helps you

5 0
3 years ago
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