3 years ago

Swimming is a great way to improve cardiovascular/respiratory health.

Physics

1 answer:

bixtya [17]3 years ago

5 0

That is true.

It increases the circulation of blood because it is a form of exercise.

You might be interested in

New ocean crust or sea floor is produced when tectonic plates _______.<br> diverge<br> converge

GarryVolchara [31]

Diverge is the right answer

8 0

3 years ago

A light ray traveling through a material with an index of refraction of 1.2 is incident on a material that has an index of refra

zzz [600]

Answer:

compared to the incident angle, the refracted angle is 45.56⁰

Explanation:

From Snell's law;

n₁sin(I) = n₂sin(r)

Where;

n₁ is the refractive index of light in medium 1 = 1.2

n₂ is the refractive index of light in medium 2 = 1.4

I is the incident angle

r is the refractive angle

$n = \frac{1}{sin(I)}\\\\sin(I) = \frac{1}{n}\\\\sin(I) =\frac{1}{1.2}\\\\sin(I) =0.8333\\\\I = sin^-{(0.8333)$

I = 56.439⁰

Applying snell's law

$n_1sin(I) = n_2sin(r)\\\\sin(r) = \frac{n_1sin(I) }{n_2}\\\\sin(r) = \frac{1.2*sin(56.439) }{1.4}\\\\sin(r) = 0.714\\\\r = sin^-(0.714)\\\\r = 45.56^o$

Therefore, compared to the incident angle, the refracted angle is 45.56⁰

3 0

3 years ago

Question 2 of 10

Arlecino [84]

Answer:

B: Energy that is transformed is neither created or destroyed

Explanation:

4 0

2 years ago

WHICH SHOULD NOT BE PART OF SCIENTIFIC INQUIRY

umka21 [38]

Answer:

Not collecting the info

Explanation:

5 0

3 years ago

M = 15 kg, a = 2 m/s2, F =

Lisa [10]

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 15 × 2

We have the final answer as

Hope this helps you

7 0

3 years ago