WNY Tutor
WNY Tutor
  • 1 237
  • 21 299 407
An alpha particle travels at a velocity of magnitude 550
An alpha particle can be produced in certain radioactive decays of nuclei and consists of two protons and two neutrons. The particle has a charge of q = +2e and a mass of 4.00 u, where u is the atomic mass unit, with 1 u = 1.661 x 10^-27 kg. Suppose an alpha particle travels in a circular path of radius 4.50 cm in a uniform magnetic field with B = 1.20 T. Calculate (a) its speed, (b) its period of revolution, (c) its kinetic energy, and (d) the potential difference through which it would have to be accelerated to achieve this energy.
zhlédnutí: 539

Video

A 1.0 mF capacitor with an initial stored energy
zhlédnutí 490Před 3 měsíci
A 1.0 F capacitor with an initial stored energy of 0.50 J is discharged through a 1.0 Mohm resistor. (a) What is the initial charge on the capacitor? (b) What is the current through the resistor when the discharge starts? Find an expression that gives, as a function of time t, (c) the potential difference VC across the capacitor, (d) the potential difference VR across the resistor, and (e) the ...
A capacitor with initial charge q0 is discharged through a resistor
zhlédnutí 525Před 3 měsíci
A capacitor with initial charge q0 is discharged through a resistor. What multiple of the time constant t gives the time the capacitor takes to lose (a) the first one-third of its charge and (b) two-thirds of its charge?
In an rc series circuit e=12v
zhlédnutí 337Před 3 měsíci
In an RC series circuit, emf E = 12.0 V, resistance R = 1.40 Mohms, and capacitance C = 1.80 mF. (a) Calculate the time constant. (b) Find the maximum charge that will appear on the capacitor during charging. (c) How long does it take for the charge to build up to 16.0 uC?
In the figure E1=6V, E2=12V, R1=100
zhlédnutí 600Před 3 měsíci
In the figure E1 = 6.00V, E2 = 12.0 V, R1 = 100 ohms, R2 = 200 ohms, and R3 = 300 ohms. One point of the circuit is grounded (V = 0). What are the (a) size and (b) direction (up or down) of the current through resistance 1, the (c) size and (d) direction (left or right) of the current through resistance 2, and the (e) size and (f) direction of the current through resistance 3? (g) What is the e...
The resistances in figure a and figure b are all
zhlédnutí 421Před 3 měsíci
The resistances in Figure (a) and Figure (b) are all 6.0 ohms, and the batteries are ideal 12 V batteries. (a) When switch S in Figure (a) is closed, what is the change in the electric potential V1 across resistor 1, or does V1 remain the same? (b) When switch S in Figure (b) is closed, what is the change in V1 across resistor 1, or does V1 remain the same?
In the figure a slab of mass
zhlédnutí 275Před 3 měsíci
In the figure, a slab of mass m1 = 40 kg rests on a frictionless floor, and a block of mass m2 = 10 kg rests on top of the slab. Between block and slab, the coefficient of static friction is 0.60, and the coefficient of kinetic friction is 0.40. A horizontal force F of magnitude 100 N begins to pull directly on the block, as shown. In unit-vector notation, what are the resulting accelerations o...
An electron moves through a uniform magnetic field
zhlédnutí 801Před 4 měsíci
An electron moves through a uniform magnetic field given by B = Bxi (3.0Bx)j. At a particular instant, the electron has velocity v = (2.0i 4.0j) m/s and the magnetic force acting on it is (6.4 X 10^-19)N. Find Bx.
The magnitude j of the current density
zhlédnutí 384Před 4 měsíci
The magnitude J of the current density in a certain lab wire with a circular cross section of radius R = 2.00 mm is given by J = (3.00 x 10^8)r^2, with J in amperes per square meter and radial distance r in meters. What is the current through the outer section bounded by r = 0.900R and r = R?
In the figure find the equivalent capacitance of the combination
zhlédnutí 460Před 4 měsíci
In the figure, find the equivalent capacitance of the combination. Assume that C1 is 10.0 uF, C2 is 5.00 uF, and C3 is 4.00 uF.
Each of the uncharged capacitors in the figure has a capacitance of
zhlédnutí 398Před 4 měsíci
Each of the uncharged capacitors in the figure has a capacitance of 25.0 uF. A potential difference of V = 4200 V is established when the switch is closed. How many coulombs of charge then pass through meter A?
You have two flat metal plates each of area
zhlédnutí 315Před 4 měsíci
You have two flat metal plates, each of area 1.00 m^2, with which to construct a parallel-plate capacitor. (a) If the capacitance of the device is to be 1.00 F, what must be the separation between the plates? (b) Could this capacitor actually be constructed?
In the figure V=10V, C1=10uF, and C2=C3=20uF
zhlédnutí 763Před 4 měsíci
In the figure, V = 10 V,C1 = 10 mF, and C2 = C3 = 20 mF. Switch S is first thrown to the left side until capacitor 1 reaches equilibrium. Then the switch is thrown to the right. When equilibrium is again reached, how much charge is on capacitor 1?
The figure shows a parallel plate capacitor of plate area
zhlédnutí 1,1KPřed 4 měsíci
The figure shows a parallel-plate capacitor with a plate area A = 7.89 cm2 and plate separation d = 4.62 mm. The top half of the gap is filled with material of dielectric constant k1 = 11.0; the bottom half is filled with material of dielectric constant k2 = 12.0. What is the capacitance?
In the figure the battery has a potential difference
zhlédnutí 952Před 4 měsíci
In the figure, the battery has potential difference V = 9.0 V, C2 = 3.0 uF, C4 = 4.0 uF, and all the capacitors are initially uncharged. When switch S is closed, a total charge of 12 uC passes through point a and a total charge of 8.0 uC passes through point b. What are (a) C1 and (b) C3?
A 100 pf capacitor is charged to a potential difference of 100v
zhlédnutí 641Před 4 měsíci
A 100 pf capacitor is charged to a potential difference of 100v
Two parallel plate capacitors, 6 uF each, are connected in parallel
zhlédnutí 358Před 4 měsíci
Two parallel plate capacitors, 6 uF each, are connected in parallel
A parallel plate capacitor has circular plates
zhlédnutí 550Před 4 měsíci
A parallel plate capacitor has circular plates
The capacitor in the figure has a capacitance of
zhlédnutí 314Před 4 měsíci
The capacitor in the figure has a capacitance of
The two metal objects in the figure
zhlédnutí 373Před 4 měsíci
The two metal objects in the figure
When the rectangular metal tank
zhlédnutí 279Před 4 měsíci
When the rectangular metal tank
An infinite nonconducting sheet has a surface charge density σ = 0.10
zhlédnutí 942Před 4 měsíci
An infinite nonconducting sheet has a surface charge density σ = 0.10
A gaussian sphere of radius
zhlédnutí 386Před 4 měsíci
A gaussian sphere of radius
An electron is placed in an xy plane
zhlédnutí 518Před 4 měsíci
An electron is placed in an xy plane
A nonuniform linear charge distribution given by
zhlédnutí 459Před 4 měsíci
A nonuniform linear charge distribution given by
An electron has an initial velocity of
zhlédnutí 777Před 5 měsíci
An electron has an initial velocity of
A plastic disk of radius r=64.0 cm
zhlédnutí 673Před 5 měsíci
A plastic disk of radius r=64.0 cm
The figure shows a thin plastic rod of length l
zhlédnutí 355Před 5 měsíci
The figure shows a thin plastic rod of length l
The figure shows a thin plastic rod of length l
zhlédnutí 1,9KPřed 5 měsíci
The figure shows a thin plastic rod of length l
Two charged particles are shown in part a of the figure. particle 1 with charge q1
zhlédnutí 828Před 5 měsíci
Two charged particles are shown in part a of the figure. particle 1 with charge q1

Komentáře

  • @201_ace
    @201_ace Před dnem

    thank you, related rates has been my nightmare lately

  • @rehman04
    @rehman04 Před dnem

    Thank you SIr now my concept is cleared

  • @hythe4936
    @hythe4936 Před 3 dny

    Am i tripping or should it be 4 divided by cosine of the angle.

  • @Saso-k6w
    @Saso-k6w Před 3 dny

    Thank you for a nice, simple explanation.

  • @randomname39cf
    @randomname39cf Před 3 dny

    excellent

  • @emilyc.2674
    @emilyc.2674 Před 5 dny

    Which book are you using?

  • @connerwedig8843
    @connerwedig8843 Před 7 dny

    You are single-handedly saving so many hours of searching for help. Thanks

  • @carriem2115
    @carriem2115 Před 7 dny

    thanks

  • @Ali-rs8wp
    @Ali-rs8wp Před 8 dny

    Goated.

  • @fornx8574
    @fornx8574 Před 8 dny

    This man is clearly a god. Thank you sir!!!

  • @funwithbrittanyofficial

    Thank you for going back over the internal angle rule! It is very annoying to see videos that glide right over geometry and trig when those are the parts people struggle with the MOST.

  • @amadubah241
    @amadubah241 Před 12 dny

    Please can you make a video of 3 loops with multiple voltage switches

  • @engiprenuer
    @engiprenuer Před 17 dny

    Trickiest thing about this question IMO is that it's poorly worded and somewhat unrealistic esp. for a science textbook. Initial wording makes it seems like 57.7 and 80.5 apply to "phase 1" and the remaining measures to "phase 2." They should really say, during two completely separate stopping incidents, your total distance covered (during both reaction and stopping phases) is this and initial velocity was that. Assume you have exactly the same reaction time and deceleration during these two completely unrelated events.

  • @arabellawatson-e7l
    @arabellawatson-e7l Před 17 dny

    can u show the derivation for the equation solid sphere of uniform charge

  • @nightmare117x
    @nightmare117x Před 18 dny

    🐐

  • @KumudRanjan-qq8sp
    @KumudRanjan-qq8sp Před 18 dny

    How can the bob complete the circle if its velocity at the top is zero. If the velocity is zero at the top then it will fall down vertically downwards. The correct answer should be that the tension in the string at the top will be zero. This will give a finite velocity (instead of zero) for the bob at the top. The speed at the top should be (gL) ^0.5

  • @tiaranietfeld3639
    @tiaranietfeld3639 Před 19 dny

    omg thank you so much

  • @askshuvo2516
    @askshuvo2516 Před 21 dnem

    Joss ❤

  • @toumi_chifaa
    @toumi_chifaa Před 22 dny

    Thank u Man

  • @basilkhan1998
    @basilkhan1998 Před 22 dny

    I owe it to you man. My professor sucked at explaining this

  • @astronautintheocean7946

    i think the y acceleration or gravity should be positive since the mass is going downwards??? if it was negative, then the car would go backwards since negative velocity makes the object go the opposite way

  • @hadarlilo
    @hadarlilo Před 23 dny

    Thank you so much for the videos!! It really saved me!

  • @genvievesplayhouse8670

    Explained beautifully. Thank you so much

  • @ashtonhulsey3699
    @ashtonhulsey3699 Před 24 dny

    Thanks you the goat

  • @opdodge9133
    @opdodge9133 Před 24 dny

    Thanks

  • @ackarcue203
    @ackarcue203 Před 27 dny

    Dude, I appreciate the help, but this was just flat out wrong for the exact same question on physics homework.

  • @user-ci9rz1ui9i
    @user-ci9rz1ui9i Před 27 dny

    You are the best

  • @sartorius5519
    @sartorius5519 Před 27 dny

    Thanks for the videooo, it was a great help

  • @laelblass9560
    @laelblass9560 Před 28 dny

    You're so excellent at breaking down these problems! Thank you so much!

  • @vysernius
    @vysernius Před 28 dny

    your handwriting is impeccable

  • @user-ci9rz1ui9i
    @user-ci9rz1ui9i Před 28 dny

    Amazing❤❤❤❤

  • @morolayomi
    @morolayomi Před měsícem

    if the electric field wasn't constant for the J and K direction, would the Qnet have just been the addition of every side?

  • @WanangwaBrownkilembe
    @WanangwaBrownkilembe Před měsícem

    Now I can feel at peace . This ploblem was hard for me 😊

  • @checohidalgo9873
    @checohidalgo9873 Před měsícem

    This was still confusing af

  • @DanielVenance-xr5du
    @DanielVenance-xr5du Před měsícem

    Thanks for this solution

  • @adelnourbakhsh
    @adelnourbakhsh Před měsícem

    This is more scientific solution than common solution in the internet for halliday. Good job . Thanks

  • @TholangNtsere
    @TholangNtsere Před měsícem

    @WNY tutor please come back sir

  • @marcellarevilla3260
    @marcellarevilla3260 Před měsícem

    U save my life. I couldn't sleep all night thinking about this exercise, and now all have sence. Love u bro ❤❤❤

  • @kaythi.tin7530
    @kaythi.tin7530 Před měsícem

    Thanks clearly explained

  • @JohnNgoza
    @JohnNgoza Před měsícem

    Nyc work

  • @juan-jh6yx
    @juan-jh6yx Před měsícem

    Wow thanks

  • @Thepotato-mo1jh
    @Thepotato-mo1jh Před měsícem

    Thank you so much your videos always help me

  • @drdg_1923
    @drdg_1923 Před měsícem

    Thank you!

  • @R7PARK
    @R7PARK Před měsícem

    The problem stated in the description does not match the video. Did you upload the wrong file while making your video series and made two of these videos instead? Regardless, thank you for the clear explanation. I was able to use the things you taught me in the video to solve the original equation with those tools.

  • @chell8738
    @chell8738 Před měsícem

    great explanation!

  • @valeriereid2337
    @valeriereid2337 Před měsícem

    Thanks so much for making these videos available.

  • @andrewjustin256
    @andrewjustin256 Před měsícem

    8:51 I just simply didn't get it! Why isn't your force normal in the direction of the object, in lieu it is perpendicular to the surface?

  • @anthonyschmoyer7812
    @anthonyschmoyer7812 Před měsícem

    Thanks!

  • @anthonyschmoyer7812
    @anthonyschmoyer7812 Před měsícem

    Thank you!!

  • @user-ig3ff1hr8f
    @user-ig3ff1hr8f Před měsícem

    ma man