1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nat2105 [25]
4 years ago
10

A proton circulates in a cyclotron, beginning approximately at rest at the center. Whenever it passes through the gap between de

es, the electric potential difference between the dees is 120 V. (a) By how much does its kinetic energy increase with each passage through the gap? (b) What is its kinetic energy as it completes 107 passes through the gap? (c) Let r107 be the radius of the proton's circular path as it completes those 107 passes and enters a dee, and let r108be its next radius, as it enters a dee the next time. By what percentage does the radius increase when it changes from r107 to r108? That is, what is percentage increase = (r108 - r107)/r107*100%?
Physics
1 answer:
nevsk [136]4 years ago
5 0

Answer:

(a) 120 eV

(b) 12.840 keV

(c) 0.466%

Solution:

As per the question:

The potential difference between the dees, V = 120 V

No. of passes, n = 107

Now,

(a) The potential energy can be given as 'qV' but by the principle of conservation of energy, this energy with each pass is converted into the kinetic energy of the particle which is given as 120 eV

Thus

The increase in Kinetic energy, \Delta KE = 120\ eV

(b) Kinetic energy on completion of 107 passes is given by:

KE = n\Delta KE = 107\times 120\ eV = 12.840\ keV

(c) The velocity of the particle can be calculated from its kinetic energy:

KE = \frac{1}{2}m_{p}v^{2} = 12.840\ keV = 120n\ eV

Thus

v = \sqrt{\frac{240ne}{m_{p}}}

Thus radius can be given as:

R = \frac{m_{p}}{Bq}(\sqrt{\frac{240ne}{m_{p}}})

where

B = Magnetic field

m_{p} = mass of proton

Therefore, we can write that:

R = \sqrt{n}

Thus the percentage increase in radius from n = 107 to n = 108 is given by:

\Delta R(in\ percent) = \frac{\sqrt{108} - \sqrt{107}}{\sqrt{107}}\times 100 = = 0.466 %

You might be interested in
How do rechargeable batteries work? When a rechargeable battery is connected to electricity it changes the pressure inside and a
aalyn [17]

Question:

How do rechargeable batteries work?

Answer:

When a rechargeable battery is connected to electricity it changes the pressure inside and allows the rubber membrane to expand, thus releasing more energy next time its used. When plugged into the wall the electrons are sent back to rebuild the original dry cell (or metal). Rechargeable batteries are made exclusively of nitrogen which when exposed to electricity from and outlet can store a charge. When a battery is zapped by the electricity from the outlet it resets the system.

7 0
2 years ago
What portion of the electromagnetic spectrum is most absorbed by the chlorophyll pigments in the thylakoid membranes?
nadya68 [22]

Answer: The visible part of the electromagnetic spectrum, <u>specifically blue and red wavelength</u>

Explanation:

Let's begin by explaining that pigments generally absorb more light than they reflect (they absorb certain wavelengths and reflect others). Therefore, the color that a given object seems to have depends on which parts of the visible electromagnetic spectrum are reflected and which parts are absorbed.

In this sense, in the thylakoid membranes there are two types of <u>chlorophyll pigments</u>:

-clorophyll b that absorbs the blue light of the electromagnetic spectrum

-clorophyll a that bsorbs the red light of the electromagnetic spectrum

That is why we generally see plants in green color and not in other colors.

4 0
3 years ago
Scientists have been able to estimate the age of our solar system by dating _____
Alisiya [41]

Answer: The correct answer is "radiometric dating".

Explanation:

Radiometric dating: It is a technique which is used to estimate the age of the rocks. In this technique, there is neither daughter product or parent nuclide can leave or enter the material after its formation.

Radioactive atoms are unstable. It decays into stable daughter atom.

Firstly, measure the quantity of the unstable atoms which are left in rock. Then, compare remaining the quantity of the unstable atoms with the quantity of stable daughter atoms in the rock to calculate the passed time since that rock formed.

Therefore, Scientists have been able to estimate the age of our solar system by radiometric dating.

5 0
3 years ago
Read 2 more answers
Glaciers store about 72% of the world's freshwater false are true
IRISSAK [1]
The answer to this question is True.
6 0
3 years ago
A bungee jumper of mass 80kg jumps from a platform.
klio [65]

The speed he was moving at when he finished falling is 30 m/s.

The given parameters;

mass of the bungee, m = 80 kg

impulse provided by the rope, J = 3200 Ns

initial upward velocity of the jumper, u = 10 m/s

  • Let the final velocity after falling = v
  • Let the upwards motion = negative
  • Let the downwards motion when falling = positive

Apply the principle of conservation of linear momentum;

J = ΔP = Δmv = m(v - u)

3200 = 80(v - (-10))

3200 = 80(v + 10)

v+ 10 = \frac{3200}{80} \\\\v+ 10 = 40\\\\v = 40-10\\\\v = 30 \ m/s

Thus, the speed he was moving at when he finished falling is 30 m/s.

Learn more here:brainly.com/question/19027317

5 0
2 years ago
Other questions:
  • Which of the following material offers the lowest resistivity?
    5·2 answers
  • If a calorie is equivalent to 4.184 joules how many joules are contained in 250 kg calories slice of pizza
    6·1 answer
  • Explain the value or importance of using the international system of units when describing motion
    6·1 answer
  • Carlos is making phosphorous trichloride using the equation below. He adds 15 g of phosphorus.
    15·1 answer
  • Which method will provide the most emotional support in a new exercise program?
    14·1 answer
  • (1) What distance does light travel in water during the time that it travels 1.10 m in vacuum?
    10·1 answer
  • Es
    11·2 answers
  • What is your operational definition for a fast reaction time?
    6·1 answer
  • I need help with this one ! <br><br>Explanation needed ~ ​
    14·1 answer
  • When a population changes dramatically over time, what would this most likely lead to?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!