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Dmitrij [34]
3 years ago
7

An Athlete is injured on field his teammates see that the injury is moderately swollen in the athlete reports the area is numb w

hat is the first thing that his teammates should do
Physics
1 answer:
blondinia [14]3 years ago
8 0
They should take him to their coach, or the athletic trainer.

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A constant force of 3.2 N to the right acts on a 18.2 kg mass for 0.82 s. (a) Find the final velocity of the mass if it is initi
zheka24 [161]

Explanation:

The given data is as follows.

      F = 3.2 N,      m = 18.2 kg,

      t = 0.82 sec

(a)  Formula for impulse is as follows.

          I = Ft = \Delta P

        Ft = m(v_{f} - v_{i})

or,    v_{f} = \frac{Ft}{m} + v_{i}

Putting the given values into the above formula as follows.

      v_{f} = \frac{Ft}{m} + v_{i}

              = \frac{3.2 \times 0.82}{18.2} + 0

              = 0.144 m/s

Therefore, final velocity of the mass if it is initially at rest is 0.144 m/s.

(b)  When velocity is 1.85 m/s to the left then, final velocity of the mass will be calculated as follows.

           Ft = m(v_{f} - v_{i})

or,      v_{f} = \frac{Ft}{m} + v_{i}

                  = \frac{3.2 \times 0.82 sec}{18.2} - 1.85

                  = -1.705 m/s

Hence, we can conclude that the final velocity of the mass if it is initially moving along the x-axis with a velocity of 1.85 m/s to the left is 1.705 m/s towards the left.

4 0
3 years ago
Read 2 more answers
One of the great triumphs of spectroscopy was when astronomers identified a new element in the sun (one that was only later foun
Nezavi [6.7K]

Answer:

When Helium is identified by astronomers is one of the great triumphs of spectroscopy.

Explanation:

Janssen managed to do this great triumphs on August 18, 1868 . Janssen was the first person to introduce the helium, an element that never seen before on Earth, in the solar spectrum. At that time, he didn’t know that what he’d seen—he just think that it was something new. In the mid of 1800, the spectroscope instrument is introduced in astronomy.

Later on we heard that all helium in Universe has been created by the fusion of hydrogen nuclei.

To know more about Spectroscopy:

brainly.com/question/14677550

#SPJ4

6 0
1 year ago
A race car travels around a curve at a constant speed. Is the race car accelerating?
tatiyna

no. the race care is at a constant speed. its staying the same speed.

8 0
3 years ago
Read 2 more answers
A child sits on the edge of a spinning merry-go-round that has a radius of 1.2 m. The child's speed is 5 m/s. What is the child'
Leya [2.2K]

Answer:

20.8 m/s^2

Explanation:

The centripetal acceleration of the child, which is moving by uniform circular motion, is given by

a=\frac{v^2}{r}

where

v = 5 m/s is the tangential speed of the child

r = 1.2 m is the radius of the circular path

Substituting the numbers into the equation, we find

a=\frac{(5 m/s)^2}{1.2 m}=20.8 m/s^2

3 0
3 years ago
PLEASE HELP ME ASAP
fomenos

Answer:1,3,5,7,8,10,11 is conduction while 2,4,6,9 is radiation

Explanation:

8 0
2 years ago
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