Which particle is used as a beam to treat cancer?

Answers

Answer 1
Answer:

Protons and neutrons particles are used as a beam to treat cancer.

What is a particle therapy?

Particle therapy can be described as a form of external beam radiotherapy using beams of energetic protons, neutrons, or other positive ions for cancer treatment. The most common kind of particle therapy is proton therapy.

In contrast to X-rays used in older radiotherapy, particle beams possess a Bragg peak in energy loss via the body, providing their maximum radiationdose at or near the tumor and minimizing damage to normal tissues.

Proton therapy can be described as a type of particle therapy that uses a beam of protons, most often to treat cancer. The main advantage of proton therapy over other types of external beam radiotherapy is that the radiation dose of protons is deposited over a narrow range of depth.

Fast neutron therapy uses high energy neutrons between 50 MeV and 70 MeV to treat cancer.

Learn more about protontherapy, here:

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Answer 2
Answer: They have a low energy level and don't penetrate deeply into the body, so this type of radiation is used most often to treat the skin, as well as tumors and lymph nodes that are close to the surface of the body.-Proton beams- are a form of particle beam radiation. Protons are positively charged parts of atoms

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Kendall has an empty graduated cylinder with markings and an identical graduated cylinder partway filled with water. She also has a balance and a marble.Which statement best describes what Kendall can do?

She can measure the volume and mass of the marble, the volume and mass of the water, and the volume and mass of the graduated cylinder.
She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder.
She can measure the volume of the marble and water, and the mass of the graduated cylinder.
She can measure the mass of the marble and water, and the volume of the graduated cylinder.

Answers

Answer:

Its B. She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder.

Explanation:

I just did it

Answer:

The awnser is actually B.

Explanation:

She can measure the mass of the water, marble and the graduated cylinder with the balance.

The volume of the water can be shown on the marked graduated cylinder, the volume of the marble can be measured by the volume difference of the water before and after the marble is put in.

A ball is thrown upward at a velocity of 20m/s. What is the velocity after 3 seconds?

Answers


This is a perfect problem to use positive and negative velocities.

Let's call the positive direction the direction that points UP. 
Then the negative direction is the one that points down.

The acceleration of gravity on Earth is 9.8 m/s² down.  That means
that any object with no forces on it except gravity gains 9.8 m/s of
speed downward every second.

OK. Ready to go to work:

The ball's initial velocity is +(up)20.0 m/s .
Every second after the toss, the ball has -(down)9.8 m/s more velocity.

The ball's velocity after 3 seconds is

            +20 + 3(-9.8)  = 

              20  -  29.4  =    - 9.4 m/s .

That means it's velocity at that time is  9.4 m/s pointing down.

Which term describes the forces acting on the car? A. inertial B. buoyant C. balanced D. unbalanced

Answers

The answer is unbalanced because the forces actually act on each other.

Regarding Indonesia, which of the following statements is false

Answers

Sukarno was succeeded by Suharto.  So choice ' C ' is false.

The answer is C. Suharto was the 2nd leader not first

Calculate the force needed to bring a 1,019-kg car to rest from a speed of 29 m/s in a distance of 118 m

Answers

Acceleration = ▵v/▵t
Time = d/v
Fisrt calculate time : ( 118/29 ) = 4 seconds
Then calculate acceleration
A = 29/4 = 7.25 m/s²
Now the force.
Force = mass * acceleration.
F= 1,019 * 7.25
F= 7,387 N

Density is calculated by dividing the mass of an object by its volume. Please select the best answer from the choices provided T F

Answers

From among the choices suggested, the better answer is the letter ' T ' ...
the letter that can call to mind the words 'tactful', 'tested', 'tasteful', triumphant',
and 'true', depending on the context.

The description of 'density' in the first sentence is a good and correct one.