Why do action and reaction forces not cancel each other out (and result in a net force of zero)?

The electromagnetic wave that CT scans are based on is called

alina1380 [7]

Answer:

X-rays

Explanation:

Electromagnetic waves are wave that do not require a material medium for transmission and they travel with a speed of light,
Electromagnetic waves have a wide range of applications in medicine, for example use of x-rays in medicine in CT scans.
CT scans uses X-rays to produce a cross-sectional image of the body or the part of the tissue being studied using x-rays and a computer.

8 0

4 years ago

Read 2 more answers

Which of the following explains how movement of material within Earth causes volcanic eruptions?

Harman [31]

It's one plate moves below the other due to the movement in the mantle

5 0

3 years ago

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If a car is taveling with a speed 6 and comes to a curve in a flat road with radius ???? 13.5 m, what is the minumum value the c

Lemur [1.5K]

Answer:

$\mu_s \geq 0.27$

Explanation:

The centripetal force acting on the car must be equal to mv²/R, where m is the mass of the car, v its speed and R the radius of the curve. Since the only force acting on the car that is in the direction of the center of the circle is the frictional force, we have by the Newton's Second Law:

$f_s=\frac{mv^{2}}{R}$

But we know that:

$f_s\leq \mu_s N$

And the normal force is given by the sum of the forces in the vertical direction:

$N-mg=0 \implies N=mg$

Finally, we have:

$f_s=\frac{mv^{2}}{R} \leq \mu_s mg\\\\\implies \mu_s\geq \frac{v^{2}}{gR} \\\\\mu_s\geq \frac{(6\frac{m}{s}) ^{2}}{(9.8\frac{m}{s^{2}})(13.5m) }\\\\\mu_s\geq0.27$

So, the minimum value for the coefficient of friction is 0.27.

4 0

4 years ago

a pitcher throws a 0.35 kg ball, giving it an acceleration of 10.0 m/s. what would the acceleration be, if the pitcher threw the

german

Answer:

New acceleration is 20.0 m/s².

Explanation:

F = m*a

F = 0.35 kg * 10.0m/s²

If Force will be doubled , and mass will be the same

we can write

2F = 2*0.35 kg*10.0 m/s²=0.35kg*20.0m/s²

New acceleration is 20.0 m/s².

8 0

4 years ago

A 1.8-kg object moves in the x direction according to the following function:

DanielleElmas [232]

Well, if the position is <u> x(t) = 2t² + 3t - 5</u>

then the speed is x ' (t) = 4t + 3 (first derivative of 'x' wrt 't')

and the acceleration is x ' ' (t) = 4 (second derivative of 'x' wrt 't')

Apparently, then, the acceleration is constant, and is not a function of time.

After 2.7 seconds or 2.7 years, the acceleration is 4 .

Force = (mass) x (acceleration)

Force = (1.8) x (4)

<em>Force = 7.2 newtons </em>

8 0

3 years ago