1. Coulomb's Law
Coulomb's law states that the force of a charged object on another charged object is directly proportional to the product of their charge(s) and inversely proportional to the square of the distance between them.
<em>k</em> is a constant.
2. The Force Would Decrease.
Coulomb's law predicts the electric force between two charged objects in a medium.
where K is the medium's dielectric constant.
Vacuum:
Plastic:
Therefore, the force between the two balls will decrease when the plastic sheet is inserted.
3. The Junction Rule states that the sum of magnitudes of the currents directed into a junction equals the sum of the magnitudes of the currents directed out of the current.
4. A Toroid is a doughnut shaped object whose surface is a torus. It annular shape is generated by revolving a circle around an axis external to the circle. Some example uses are RF chokes which is an inductor to have a high impedance to RF current and low impedance to DC current. Another use is variable-frequency oscillator (VFO). The frequency is set by a tuned circuit using capacitors and inductors. The frequency can be changed by adjusting the components in the tuned circuit. Just one last example is in mixers. These are used in transformers for Diode Ring Mixers. Which result in being ready, built, and homebrew.
The radius of curvature of the path of a 14.4 MeV proton in a 6.00 T magnetic field is 0.091 m.
The radius of curvature can be calculated with Lorentz force:
Since there is no electric field (E = 0) and the Lorentz force is equal to the centripetal force, we have:
Replacing for in the above equation, we get:
Where:
m: is the mass of the proton = 1.67x10⁻²⁷ kg
q: is the charge of the proton = 1.602x10⁻¹⁹ C
r: is the radius of curvature =?
v: is the <em>tangential </em>velocity
B: is the magnetic field = 6.00 T
The <em>magnetic field</em> is <u>perpendicular</u> to the charged <em>particles</em>, so:
The <em>tangential velocity</em> can be calculated from the <em>energy</em>:
Finally, the radius is:
Therefore, the radius of curvature of the path is 0.091 m.
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There are supposed to be numbers in these places:
" _____ of methane"
" ... pressure of exactly _____ "
" ... temperature of _____ "
I've seen a lot of questions with missing numbers before, but I think this is the first time I ever saw a question where even the number of significant digits to round the answer to is missing.
"Round your answer to _____ significant digits."
battery
Explanation:
Electromagnets can be created by wrapping a wire around an iron nail and running current through the wire. The electric field in the wire coil creates a magnetic field around the nail. In some cases, the nail will remain magnetised even when removed from within the wire coil
Answer:
9.8m/s^2 down (option C)
Explanation:
The only acceleration acting on this motion case in the acceleration due to gravity: 9.8 m/s^2 in the downwards direction.