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2 years ago

The first step in responding to any sports injury is to __________.

Physics

2 answers:

True [87]2 years ago

7 0

Answer:

Explanation:

The first step in responding to an injury in sports is to remove the danger that led to the injury
B cannot be correct because if an athlete suffers a broken leg you don't check their air ways primarily
C is also not right as that is only when the player is unconscious
D is not right as that is the result of only a very life-threatening injury
A is the right answer

melamori03 [73]2 years ago

4 0

Answer:

remove the danger that lead to injury

Explanation:

The best way is

spot the reason for injury
Then try best to remove that cause as fast as possible.
Then spot the place of body where injury happened
NOW treat for that

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A 100.0 mL sample of 1.020 M HCl is mixed with a 50.0 mL sample of 2.040 M NaOH in a Styrofoam cup. If both solutions were initi

I am Lyosha [343]

Answer:

$t_2 = 33.793$

Explanation:

Given data:

0.1 L HCl × 1.020 mol/L = 0.102 mol HCL

0.05 L NaOH × 2.040 mol/L = 0.102 mol NaOH

NaOH + HCl \rightarrow H_2O + NaCl

0.102 mol HCl /1 mol HCl × 1 mol H2O = 0.102 mol H2O

0.102 mol H2O / 1 mol H2O × 57000 J = 5814 J

$V(t ) = V_1+V_2 = 100 + 50 = 150 mL$

M(t)=150*1=150 g

we know that heat energy is given as

$Q = mc(t_2 - t_1)$

where c is specific heat

total energy released is = 57 \times 0.102 = 5.814 kJ

$5814 = 150 \times 4.184 \times (t_2 - 24.53)$

$t_2 = 33.793$

8 0

4 years ago

A single slit forms a diffraction pattern, with the first minimum at an angle of 40.0° from central maximum, when monochromatic

Margarita [4]

Answer:

$\lambda = 424.4 nm$

Explanation:

As we know by the formula of diffraction

$a sin\theta = N\lambda$

so we have

a = slit size

$\theta$ = angular position of Nth minimum

so we will have

for first minimum of 630 nm light

$a sin40 = 1(630 \times 10^{-9})$

$a = 9.8 \times 10^{-7} m$

Now for another wavelength second minimum is at 60 degree angle

$a sin60 = 2 \lambda$

$(9.8 \times 10^{-7}) sin60 = 2 \lambda$

$\lambda = 424.4 nm$

3 0

3 years ago

Examine the following equation.

alex41 [277]

Answer:

E)brain decay

Explanation:

Looking at the question causes it.

6 0

3 years ago

What are two types of diffraction?

tino4ka555 [31]

Fresnel and Fraunhofer diffraction. Fresnel diffraction is produced when light from a point source meets an obstacle, the waves are spherical and the pattern observed is a fringed image of the object. Fraunhofer diffraction occurs with plane wave-fronts with the object effectively at infinity. The pattern is in a particular direction and is a fringed image of the source.

7 0

3 years ago

Otion

Scorpion4ik [409]

Answer:

SKID

Explanation:

In general, airplane tracks are flat, they do not have cant, consequently the friction force is what keeps the bicycle in the circle.

Let's use Newton's second law, let's set a reference frame with the horizontal x-axis and the vertical y-axis.

Y axis y

N- W = 0

N = W

X axis (radial)

fr = m a

the acceleration in the curve is centripetal

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

the friction force has the expression

fr = μ N

we substitute

μ mg = m v²/r

v = $\sqrt{\mu g r}$

we calculate

v = $\sqrt{0.1 \ 9.8 \ 3}$

v = 1,715 m / s

to compare with the cyclist's speed let's reduce to the SI system

v₀ = 18 km / h (1000 m / 1 km) (1 h / 3600 s) = 5 m / s

We can see that the speed that the cyclist is carrying is greater than the speed that the curve can take, therefore the cyclist will SKID

5 0

3 years ago