Explore BrainMass
Share

# Nuclear Particles

A nuclear particle is a unit of matter smaller than an atom. There are two types of subatomic particles: elementary particles and composite particles. Elementary particles are not made up of other particles whereas composite particles are. Nuclear physics is the study of how these particles interact.

In the standard model, the elementary particles include, six favors of quarks, up, down, bottom, top, strange and charm, six types of leptons, electrons, electron neutrino, muon, muon neutrino, tau and tau neutrino, twelve gauge bosons, the photon of electromagnetism, the three W and Z bosons of the weak force, and the eight gluons of the strong force, and the Higgs boson. There are various extensions of the standard model that predicts the existence of other elementary particles.

Composite particles, such as protons or atomic nuclei, are bound states of two or more elementary particles. They include all hadrons, a group composed of baryons and mesons. An example of a composite particle is a proton. A proton is made up of two up quarks and one down quark.

## BrainMass Categories within Nuclear Particles

### De Broglie wavelength associated with a particle having kinetic

Prove that the De Broglie wavelength associated with a particle having kinetic energy K which is not negligible compared to its rest energy m_0 c^2 is given by lemda = [h/(m_0 K)^(1/2)](1 + K/2m_0 c^2)^(-1/2) The complete solution is in the attached file.

### Variation of Range Projection with Angle of Projection

Range of a particle when launched at an angle of 15 degree with the horizontal is 1.5 km. What is the range of the projectile when launched at an angle of 45 degree with the horizontal. (assume, g = 10 m/s^2)

### Number of microstates for a system for Bosons and Fermions

Please explain to me how to solve the following two questions.(Explanations wills be highly appreciated) Cheers 1. Count the number of physically different microstates for a system of n indistinguishable fermions, where each particle can be in k different non-degenerate eigenstates. 2. Count the number of physically diffe

### Coordinates of a Point on T Shaped Structure

Hi. I don't need a complete solution to the attached problem; I need to understand just one step. To solve the problem, I need the coordinates of the mass at time t. My professor gave me the hint that, if the l-rod makes an angle wt with the x-axis, then the coordinates of the mass are: x = l*cos(wt) - r*sin(wt), and y = l

### Gravitation: Force Between Two Co-Linear Rods

Find the gravitational force of attraction between the two objects below. The red rod on the left has a mass mr and a length lr and the blue rod on the right has a mass mb and a length lb. The two ends of the rods nearest each other are separated by a distance d. Treat each rod as if they were a 1-dimensional collection of po

### Spheres

Two uniform spheres, each with mass M and radius R, touch one another. a). What is the magnitude of their gravitational force of attraction?

### phase constant of oscillation

Please see attached file for full problem description. What is the phase constant in equation 14.14 if the initial position of the oscillating particle is: a) 0 b) -A c) A d) A/2 (A is the amplitude) equation 14.14 is: x(t) = Acos(wt + pi(

### Kinematics & Kinetics of Particles

A boy at A throws a ball 45o from the horizontal such that it strikes the slope at B. Determine the speed at which the ball is thrown and the time of flight. See attached file for full problem description.

### Obtain the Hamiltonian equations of motion.

A particle of mass m moves under the influence of gravity along the helix Z = K* (theta), r = constant where K is constant and Z is vertical. Obtain the Hamiltonian equations of motion.

### Quantum probability, probability current, commutators

(See attached file for full problem description)

### Particle in Harmonic Motion

A particle moves in simple harmonic motion with a frequency of 2.20 Hz and an amplitude of 5.60 cm. Through what total distance does the particle move during one cycle of its motion?

### The De Broglie Wavelength and the Wave Nature of Matter

How fast does a proton have to be moving is order to have the same de Broglie wavelength as an electron that is moving at 3.75x10^6 m/s? Units are m/s.

### The coordinates of three

The coordinates of three particles are (5,7), (0,3) and (-1,-1). if the three particles have masses of 1.0 kg, 2.0 kg and 2.0 kg respectively, find the coordinates of the center of mass. a.(-0.6,2.2) b. (0.6, 2.2) c. (-0.6, -2.2) d. (0.6, -2.2)

### Find the maximum particle speed of points on the wire.

A wave travels along a wire at 5 m/sec toward +x. SEE ATTACHMENT #1 for a diagram showing y and t axis system with scale values. PART a. Using information shown on the diagram, write y(x,t) in terms of k and (omega), with numbers for the constants. PART b. When t= 3 sec, and at x= 7 m, find y. PART c. At location x= 2.

### Spectroscopic States

List the spectroscopic states (energy levels in the usual notation (2S+1)^L, that can arise from: one particle with S=1/2,L=3 one particle with S=2,L=1 two particles with s1=1/2,s2=1,L=4 two particles with s1=1,s2=1, L=3 two particles with s1=1/2,s2=1/2,L=2 Which of the two particles are excluded if the p

### Air and Balloon Behaviour and Characteristics

Two balloons one large and the other small, are filled with air. They are inter-connected. Immediately, air flows from the small balloon to the large instead of the other way round [as would be the case of water]. Explain.