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3 years ago

Compare and contrast both densely-ionizing and sparsely-ionizing radiation.

Physics

1 answer:

kherson [118]3 years ago

7 0

Explanation:

Radiation biology is the study of the effects of ionizing radiation on living organisms, when this radiation is absorbed in biologic material, ionization and excitations occur in a pattern that depends on the type of radiation involved, considering how far the primary ionization events are separated in space, radiation can be sparsely ionizing (for example, an x-ray or a gamma-ray) or densely ionizing (for example, a proton or an alpha particles).

<em>DNA is the most critical biological target because of the limited redundancy of the genetic information it contains, most lesions are reparable, but those produced by densely ionizing radiation are generally less reparable than those produced by sparsely ionizing radiation. Densely ionizing (high LET) radiations, therefore, typically have a higher relative biological effectiveness.</em>

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A charged particle is moving in a uniform magnetic field at a speed of 8.2Ã10^3 m/s in a direction 87Â° from the direction of th

77julia77 [94]

Answer:

Magnetic field, B = 0.042 T

Explanation:

It is given that,

Speed of charged particle, $v=8.2\times 10^3\ m/s$

Angle between velocity and the magnetic field, $\theta=87$

Charge, $q=5.7\ \mu C=5.7\times 10^{-6}\ C$

Magnetic force, F = 0.002 N

The magnetic force is given by :

$F=qvB\ sin\theta$

B is the magnetic field

$B=\dfrac{F}{qv\ sin\theta}$

$B=\dfrac{0.002}{5.7\times 10^{-6}\times 8.2\times 10^3\times sin(87)}$

B = 0.042 T

So, the strength of the magnetic field is 0.042 Tesla. Hence, this is the required solution.

5 0

4 years ago

horizontal force pushes block up a 20.0 incline with an initial speed 12.0 m//s. a) how high up the plane does slide before comi

Annette [7]

Answer:

Explanation:

We shall apply conservation of mechanical energy .

initial kinetic energy = 1/2 m v²

= .5 x m x 12 x 12

= 72 m

This energy will be spent to store potential energy . if h be the height attained

potential energy = mgh , h is vertical height attined by block

= mg l sin20 where l is length up the inclined plane

for conservation of mechanical energy

initial kinetic energy = potential energy

72 m = mg l sin20

l = 72 / g sin20

= 21.5 m

deceleration on inclined plane = g sin20

= 3.35 m /s²

v = u - at

t = v - u / a

= (12 - 0) / 3.35

= 3.58 s

it will take the same time to come back . total time taken to reach original point = 2 x 3.58

= 7.16 s

7 0

3 years ago

How many Faces, Vertices and Edges are there on a cube?

Kay [80]

They have 6 faces
12 edges
8 edges

3 0

3 years ago

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At some airports there are speed ramps to help passengers get from one place to another. A speed ramp is a moving conveyor belt

Amanda [17]

Answer:

The time taken is $t_s = 31.16 s$

Explanation:

From the question we are told that

The length of the speed ramp is $L = 104m$

The speed of the speed ramp is $v_r = 2.1 m/s$

The time taken to cover the distance is $t = 84 s$

The walking speed( when not on the speed ramp) required to cover the 104m is mathematically represented as

$v_w = \frac{L}{t}$

Substituting values

$v_w = \frac{104}{84}$

$= 1.238 m/s$

The speed required to cover the 104m distance when on a speed speed ramp is mathematically represented as

$v = The\ walking\ speed + speed \ of \ the \ speed \ ramp$

substituting values

$v = 2.1 + 1.238$

$v = 3.338 m/s$

Now the time taken to travel the 104m distance when walking on the speed ramp is mathematically evaluated as

$t_s = \frac{L}{v}$

$= \frac{104}{3.338}$

$t_s = 31.16 s$

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3 years ago

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What does displacement depend on

bogdanovich [222]

The answer to this question is distance.

7 0

3 years ago