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
Arada [10]
3 years ago
12

A particle of charge q moving through a magnetic field B experiences the force where v is the velocity of the particle. Show tha

t: (i) The force does no work in moving the particle along its path from t = 0 to t=T. (i1) The speed v(t) Iv(O)ll of the particle is constant in time e particle 1s constant in time
Physics
1 answer:
MrRa [10]3 years ago
3 0

Answer:

       dx/Dt x B . x  =0

Explanation:

Let's calculate the work and the magnetic force, the expression for magnetic force is

        F = qv x B

Bold indicate vector quantities, the expression for the job is

         W = F. X

Let's replace in this equation

       W = q v x B . X

The definition of speed is

      v =  dX / dt

With what work is left

     W = q dX / dt x B . X

As we can see the vector product gives us a vector perpendicular to dX and its scalar product by X of zero

Second part

   The speed a vector and although the magnitude is constant the change of direction implies a change in the speed.

   Let's calculate the magnitudes of speed (speed)

       F = qv B sin θ

       F = ma

       q v B sin θ = ma

       a = qvB / m senT

     

This acceleration is perpendicular to the magnetic field and the velocity, so it does not change if magnitude but its direction, it is directed to the center of the circle.

   | v | = q vB/m sin θ

You might be interested in
How does gravity keep the moon in orbit around earth
lidiya [134]

Answer:

The moon's orbit draws the oceans to it, which triggers ocean tides. Force produces stars and planets by gathering the mass from which it exists.

Explanation:

The moon's orbit draws the oceans to it, which triggers ocean tides. Force produces stars and planets by gathering the mass from which it exists.

Answer is above

<em><u>Hope this helps.</u></em>

3 0
2 years ago
Yvonne has gained a reputation for her cheesecakes. She takes orders for 10 cheesecakes and spends 8.5 hours on one Saturday bak
VLD [36.1K]
A) 10÷8.5
b) 120÷10
c) answer A÷Answer B.

sure on first two, not so sure on C.
3 0
2 years ago
Define the following:
belka [17]
Define the following:
Potential energy: In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.
Kinetic energy: In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
Mechanical energy:
Chemical energy: chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat; such reactions are called exothermic. Reactions that require an input of heat to proceed may store some of that energy as chemical energy in newly formed bonds
Sound energy: In physics, sound energy is a form of energy that can be heard by living things. Only those waves that have a frequency of 16 Hz to 20 kHz are audible to humans. However, this range is an average and will slightly change from individual to individual.
Light energy: Light energy is a kind of kinetic energy with the ability to make types of light visible to human eyes. Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun. Light contains photons which are minute packets of energy.
Nuclear energy: Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium in nuclear power plants
5 0
2 years ago
Read 2 more answers
A testable question is a question that _____. A. might be asked on a science test B. can be answered with either a yes or no C.
Cloud [144]

Answer:

D. can be answered by gathering observations.

Explanation:

4 0
3 years ago
Which frequencies can humans can hear but not mice
Blizzard [7]
Of approximately 1 to 4 kHz6 and approximately 16 kHz for mice.
6 0
2 years ago
Other questions:
  • If your mass is 20kg, and you stand on the scale (witch is your force), and the acceleration due to gravity is10m/s^2, what does
    13·2 answers
  • Making payments to a victim in order to repay them for losses they incurred during or as a result of the crime is called
    15·1 answer
  • Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initia
    14·1 answer
  • How does tightening a string on a guitar affect its natural frequency?
    5·2 answers
  • what is a hypothesis reffered to as after being verified by a large number or independent experiments
    5·1 answer
  • How long does it take a plane that is traveling at 350 km/h to travel 1750 km?
    9·1 answer
  • A single point on a distance time graph tells the ____ speed
    10·2 answers
  • If a reaction occurs when a piece of metal is placed in a solution, what can you conclude about the solution?
    15·1 answer
  • Suppose that the space shuttle Columbia accelerates at 14.0 m/s2 for 8.50 minutes after takeoff.
    8·1 answer
  • The force required to accelerate a 0.50kg ball at 50 m/s2 is (Remember F=ma) 25N 25K 50N 250N​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!