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2 years ago

Which of the following EM waves do not kill cells? Radio waves UV light Xrays Gamma

Physics

1 answer:

Novosadov [1.4K]2 years ago

7 0

Answer:

The answer is below!!

Explanation:

Gamma-rays

Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum. These waves are generated by radioactive atoms and in nuclear explosions. Gamma-rays can kill living cells, a fact which medicine uses to its advantage, using gamma-rays to kill cancerous cells.

Hope I Helped!!!

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How do l calculate e<br> nergy

aivan3 [116]

The formula for energy of motion is KE = .5 x m x v^2

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v = Velocity in Meters per Second

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3 years ago

What electrons are in “motion”, what do you have?

Sergeeva-Olga [200]

Answer:

When a positive charged object is placed near a conductor electrons are attracted the the object. ... When electric voltage is applied, an electric field within the metal triggers the movement of the electrons, making them shift from one end to another end of the conductor. Electrons will move toward the positive side. As you know, electrons are always moving. They spin very quickly around the nucleus of an atom. As the electrons zip around, they can move in any direction, as long as they stay in their shell.

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3 years ago

The lawn sprinkler consists of four arms that rotate in the horizontal plane. The diameter of each nozzle is 8 mm, and the water

sashaice [31]

Answer: the constant angular velocity of the arms is 86.1883 rad/sec

Explanation:

First we calculate the linear velocity of the single sprinkler;

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Area of the nozzle = π/4 × (8 × 10⁻³)²

A = 5.024 × 10⁻⁵ m²

Now total discharge is dived into 4 jets so discharge for single jet will be;

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So using continuity equation ;

Q_single = A × V_single

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we substitute

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Now resolving the forces as shown in the second image,

Vt = Vcos30°

Vt = 29.8566 × cos30°

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3 years ago

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Nutka1998 [239]

Good morning.

We have:

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We have that

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We add the vector -a to both sides:

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3 years ago

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