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
shutvik [7]
3 years ago
7

qual charges, one at rest, the other having a velocity of 104 m/s, are released in a uniform magnetic field. Which charge has th

e largest force exerted on it by the magnetic field?

Physics
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

The correct option is D

Explanation:

From the question we are told that

    The speed of the first charge is  v  = 0 \ m/s

This is because it is at rest

     The speed of the second charge is  v  =  10^{4} \ m/s

Generally the force exerted by a magnetic field on a charge is mathematically represented as

      F_q  =  q * v  *  B sin \theta

Now looking at this above equation we can see that F_q can only be maximum at  \theta  =  90 ^o and this only obtained when the direction of the charge (i.e its velocity  ) is perpendicular to the direction of the magnetic field

so the correct option for this question is D

     

You might be interested in
The unit of energy is a derived unit give reasons.<br>​
liraira [26]

Answer:

ioinl

Explanation:

6 0
2 years ago
0.10-kilogram model rocket’s engine is designed to deliver an impulse of 6.0 newton-seconds. If the rocket engine burns for 0.75
UkoKoshka [18]

Answer:

8.0 N

Explanation:

Force: This can be defined as the mass of a body and its acceleration. The S.I unit of Force is Newton (N).

Mathematically, Fore is expressed as

F = ma ........................... equation 1

Where F = force, m = mass, a = acceleration.

and

I = mΔv

Δv = I/m ............................ Equation 2

Where I = impulse, m = mass, Δv = change in velocity

Given: I = 6.0 Newton-seconds, m = 0.1 kilogram.

Substituting into equation 2

Δv = 6.0/0.1

Δv = 60 m/s.

But

a = Δv/t

where t = time = 0.75 seconds.

a = 60/0.75

a = 80 m/s²

Substitute the values of a and m into equation 1.

F = 0.1(80)

F = 8.0 N.

Thus the average force produced = 8.0 N

6 0
3 years ago
MODERN PHYSICS
frosja888 [35]

Answer:

D. n=6 to n=2

Explanation:

Given;

energy of emitted photon, E = 3.02 electron volts

The energy levels of a Hydrogen atom is given as;  E = -E₀ /n²

where;

E₀ is the energy level of an electron in ground state =  -13.6 eV

n is the energy level

From the equation above make n, the subject of the formula;

n² = -E₀ / E

n² = 13.6 eV / 3.02 eV

n² = 4.5

n = √4.5

n = 2

When electron moves from higher energy level to a lower energy level it emits photons;

E = E_0(\frac{1}{n_1^2}-\frac{1}{n_2^2} )\\\\\frac{1}{n_1^2}-\frac{1}{n_2^2} = \frac{E}{E_o} \\\\\frac{1}{4} -\frac{1}{n_2^2} = \frac{3.02}{13.6} \\\\\frac{1}{4} -\frac{1}{n_2^2} =0.222\\\\\frac{1}{n_2^2} = 0.25 - 0.22\\\\\frac{1}{n_2^2} = 0.03\\\\n_2^2 = 33.33\\\\n_2 = \sqrt{33.33} = 6

For a photon to be emitted, electron must move from higher energy level to a lower energy level. The higher energy level is 6 while the lower energy level is 2

Therefore,  The electron energy-level transition is from n = 6 to n = 2

3 0
3 years ago
I don't know what to do so first people to answer get 30 points
garik1379 [7]

Answer: Hi!

Explanation:

3 0
4 years ago
Read 2 more answers
What velocity must a 1210 kg car have in order to have the same momentum as the pickup truck in the sample problem
harina [27]

Answer:

P=mv 2250*25=56250

Explanation:

p of truck =2250*25 =56250

since p of truck = p of car

then p of car = 56250

therefore p of car = 1210 * v

or, 56520=1210v

or,v= 56520/1210=46.48

so, v of car is 46.48m/s

3 0
3 years ago
Other questions:
  • If a car travels 600m west in 25 seconds, what is its velocity?
    8·1 answer
  • What feat did the spacecraft near shoemaker accomplish?
    7·2 answers
  • Which statement below is correct concerning UV waves? A) UV waves are longer and carry more energy B) UV waves are higher freque
    9·1 answer
  • What is the electric force between a glass ball that has +2.5 x 10^-6 C of charge and a rubber ball that has -5.0 x 10^-6 C of c
    10·1 answer
  • 17. 1 micrometer (1 µm) equals:
    15·1 answer
  • Which country first landed a human on the surface of the moon?
    6·2 answers
  • 1. Suppose you know that the net force on an object is zero. What can you say about
    12·1 answer
  • Which of the following could be possible vector directions
    12·1 answer
  • What mistake did Carl make?
    13·2 answers
  • Tyler drives 50km north. Tyler then drives back 30km south. What distance did he cover? What was his displacement?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!