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slava [35]
3 years ago
15

A nuclear accident (intentional or unintentional) can cause significant harm to those living nearby or at a distance. Harmful le

vels of invisible gamma radiation penetrate the body, not only causing devastating injuries but possibly contaminating others. What type of transmission precaution prevents such person-to-person contamination?
Physics
1 answer:
MrRissso [65]3 years ago
3 0

Answer:Explained

Explanation:

Invisible gamma radiation does not transmit through Air or through contact thus standard precautions can  encompasses more than person-to-person contamination.

Some Standard Precautions are

  • Hand Hygiene

Use Alcohol based hand disinfectant and always use gloves.

  • Use Eye shields,Gowns,face shields .
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A ball is thrown up into the air with 100 j of kinetic energy, which is transformed to gravitational potential energy at the top
xenn [34]

The kinetic energy when it returns to its original height is 100 J

The ball is thrown up with a Kinetic Energy K. E. = 0.5×m×v² = 100 J

Therefore the final height is given by

u² = v² -2·g·s

Where:

u = final velocity = 0

v = initial velocity

s = final height

Therefore v² = 2·g·s = 19.62·s

P.E = Potential Energy = m·g·s

Since v² = 2·g·s

Substituting the value of v² in the kinetic energy formula, we obtain

K. E. = 0.5×m×2·g·s = m·g·s = P.E. = 100 J

When the ball returns to the original height, we have

v² = u² + 2·g·s

Since u = 0 = initial velocity in this case we have

v² = 2·g·s and the Kinetic energy = 0.5·m·v²

Since m and s are the same then 0.5·m·v² = 100 J.

Learn more about kinetic energy at:

brainly.com/question/25959744

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8 0
1 year ago
If the particles are oxygen ions carrying a charge of −2e and the magnetic field magnitude is 0.12 T , how long does it take eac
Natali5045456 [20]

Time taken by each ion to travel the semicircular path through the magnetic field is 34 X 10⁻²⁶s.

<u>Explanation:</u>

Given:

Charge of oxygen ion, q = -2

Magnetic Field, B = 0.12 T

Mass of O₂ , m= 2.6 X 10⁻²⁶ Kg

Time, T = ?

We know,

                T = \frac{2\pi m}{qB}

Therefore,

T = 2 X 3.14 X 2.6 X 10⁻²⁶/ 2 X 0.12

T = 68 X 10⁻²⁶s

For semicircular orbit, Time taken would be T/2

T ₓ = 68 X 10⁻²⁶/2 s

T ₓ = 34 X 10⁻²⁶s

Therefore, time taken by each ion to travel the semicircular path through the magnetic field is 34 X 10⁻²⁶s.

4 0
3 years ago
Which of the following is false?
stealth61 [152]
The correct answer is C
3 0
4 years ago
A cyclist travels at 15 m/s during a sprint finish. What is this speed in km/h
g100num [7]

Answer:

54 km/hr

Explanation:

m/s to km/hr => 18/5

15 m/s to km/hr => 15 x 18/5 =>3 x 18 => 54km/hr

8 0
3 years ago
Which material is the MOST dense?<br><br> A. lead<br> B. brick<br> C. copper<br> D. platinum
Murljashka [212]
I think platinum is most dense
7 0
4 years ago
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