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KonstantinChe [14]
4 years ago
11

Which one of the following statements about proprioceptive neuromuscular facilitation (PNF) is most accurate?

Physics
2 answers:
Ede4ka [16]4 years ago
6 0

Answer:

It is the most common and practical type of stretching.

Explanation:

Proprioceptive neuromuscular facilitation (PNF) is a very common and practical method of stretching that promotes and accelerates the response of neuromuscular mechanisms through the stimulation of receptors in the nervous system. It is based on the use of movements and postures for therapeutic purposes and seeks to understand movement and normal posture to perform learning or relearning when these movements or posture are altered.

mariarad [96]4 years ago
4 0

"It can cause more muscle soreness than other types of stretching

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A 11-inch candle is lit and burns at a constant rate of 0.9 inches per hour. Let t t represent the number of hours since the can
Serggg [28]

Answer: F(t) = 11 - 0.9(t)

Explanation:

We know the following:

The candle burns at a ratio given by:

Burning Ratio (Br)  = 0.9 inches / hour

The candle is 11 inches long.

To be able to create a function that give us how much on the candle remains after turning it after a time (t). We will need to know how much of the candle have been burned after t.

Let look the following equation:

Br = Candle Inches (D) / Time for the Candle to burn (T)      (1)

Where (1) is similar to the Velocity equation:

Velocity (V) = Distance (D)/Time(T)

This because is only a relation between a magnitude and time.

Let search for D on (1)

D = Br*T  (2)

Where D is how much candle has been burn in a specif time

To create a function that will tell us how longer remains of the candle after be given a variable time (t) we use the total lenght minus (2):

How much candle remains? ( F(t) ) = 11 inches - Br*t

F(t) = 11 - 0.9(t)

F(t) defines the remaining length of the candle t hours after being lit

8 0
3 years ago
Which is a characteristic of projectile motion?
Ne4ueva [31]
A projectile<span> is an object upon which the only force acting is gravity. Many </span>projectiles<span> not only undergo a vertical </span>motion<span>, but also undergo a horizontal </span>motion<span>. That is, as they move upward or downward they are also moving horizontally.</span>
3 0
3 years ago
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Why is the air drag on a baseball different than it would be for a smooth ball with no stitches? How does this apply to the desi
yKpoI14uk [10]

Answer:

The stitches and dimples around a baseball  and a golf ball respectively, disturbs the air drag on the balls once they are in motion, allowing the them to travel more easily.

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The stitches on a baseball disturbs the air drag on the ball when the ball is in motion, allowing the ball to travel more easily. Depending on the orientation of the ball in flight, the drag changes as the flow is disturbed by the stitches.  

A smooth ball with no stitches or dimples has more air drag that opposes the motion.

A golf ball is smooth ball with dimples to create a thin turbulent boundary layer of air that clings to the ball's surface. This allows the smoothly flowing air to follow the ball's surface a little farther around the back side of the ball, thereby decreasing the size of the wake, and allowing the ball to travel more easily.

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4 years ago
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Svetradugi [14.3K]

Wavelength is the distance between 2 adjacent points in a wave

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