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
slava [35]
2 years ago
5

A charged particle moves through a magnetic field. In which situation is the magnetic force zero?

Physics
1 answer:
maksim [4K]2 years ago
7 0

Answer:

The answer is the option a.

Explanation:

We know that magnetic force (Fm) is defined as

Fm = q (v x B)

Where q is a the value of the charge, v is the velocity of the charge and B is the value of the magnetic field.

"v x B" is defined as the cross product between the vectors velocity and magnetic field, and if the angle between them is thetha < 180°, then, the cross product is

v x B = vBsin (thetha)

So,

Fm = qvBsin (thetha)

And, in case in which v and B are parallel vectors, thetha is zero, and,

sin (thetha)=sin (0) = 0

So, Fm=0

You might be interested in
A proton, initially traveling in the +x-direction with a speed of 5.05×10^5 m/s , enters a uniform electric field directed verti
Korvikt [17]

Answer:

The strength of the electric field is 1.35\times10^{4}\ N/C.

Explanation:

Given that,

Speed v= 5.05\times10^{5}\ m/s

Time t= 3.90\times10^{-7}\ s

Angle = 45°

We need to calculate the acceleration

Using equation of motion

v = u+at

5.05\times10^{5}=0+a\times3.90\times10^{-7}

a =\dfrac{5.05\times10^{5}}{3.90\times10^{-7}}

a=1.29\times10^{12}\ m/s^2

We need to calculate the strength of the electric field

Using relation of newton's second law and electric force

F= ma=qE

ma = qE

E=\dfrac{ma}{q}

Put the value into the formula

E=\dfrac{1.67\times10^{-27}\times1.29\times10^{12}}{1.6\times10^{-19}}

E=1.35\times10^{4}\ N/C

Hence, The strength of the electric field is 1.35\times10^{4}\ N/C.

3 0
3 years ago
How high is the rocket when the canister hits the launch pad, assuming that the rocket does not change its acceleration?
aalyn [17]
There is too much information given, it's hard to understand exactly which variables are important in this problem. 
7 0
2 years ago
A bus that was moving at a high speed stopped suddenly. One of
fiasKO [112]

Answer:

this doesn't make sinces

7 0
2 years ago
All of the following are true about scientific evidence except: *
goldenfox [79]

Answer:

Your answer is D It does not need to be repeatable.

the reason for this is because C is correct.

You need to be able to experiment on something multiple times so that you can gather further data to imbedded your evidence in facts.

4 0
3 years ago
Why do we need gametes?
andrew11 [14]

Answer:

Gametes are the cells used during sexual reproduction to produce a new individual organism.

Explanation:

The male gamete or sperm, is a smaller, mobile cell that meets up with the much larger and less mobile female gamete, egg or ova.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Leftover planetesimals that formed in the region of the solar system now occupied by the jovian planets are called
    7·1 answer
  • An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10
    9·1 answer
  • If you know that the rock fell 4.9 m in 1 s , how far did it drop in the first 0.5 s after you dropped it?
    9·2 answers
  • A sinusoidal wave is traveling on a string with speed 40 cm/s. The displacement of the particles of the string at x = 10 cm vari
    10·2 answers
  • Construct an example of a food chain that involves mosquitos
    6·1 answer
  • Newton's law of gravitation states that two masses will ______.
    9·2 answers
  • An airplane started at a distance of 20 km from Chicago and flew directly
    11·1 answer
  • Some plants disperse their seeds by having the fruit split and contract, propelling the seeds through the air. The trajectory of
    15·1 answer
  • two car moving in the same direction have speed of 100km/h-1 and 130km/h.what is the resultant of velocity .shoe carnival in the
    13·1 answer
  • An object which starts at the origin is traveling in the positive direction with a constant velocity V. After traveling a distan
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!