I would assume that the magnesium would have to come into contact with an ion in order to become a magnesium ion.
Answer:
λ = 4.1638 10⁻⁷ m
Explanation:
The photoelectric effect was explained by Einstein assuming that the radiation acts like particles and the equation that describes the process is
K = h f -Ф
where K is the kinetic energy of the emitted electrons, hf the energy of the photons according to Planck's equation and Ф the work function of the material
In this case they give us the kinetic energy of the electrons
K = 0.7 eV
The sodium work function is tabulated Ф = 2.28 eV
Let's find the frequency of the photons
f = (K + Ф) / h
Planck's constant is
h = 6.626 10⁻³⁴ J s (1 eV / 1.6 10⁻¹⁹ J) = 4.136 10⁻¹⁵ eV s
f = (0.7 + 2.28) / 4.136 10⁻¹⁵
f = 7.2050 10¹⁴ Hz
let's find the wavelength using the relationship between speed and frequency and wavelength
c = λ f
λ = c / f
λ = 3 10⁸ / 7.205 10¹⁴
λ = 4.1638 10⁻⁷ m
Answer:
yes
Explanation:
when we throw a ball upwards, it will eventually come back to us because of force.
The drill press's primary function is drilling, but it can also be used for reaming, countersinking, counterboring, and tapping.
<h3>Before drilling a hole, what tool do machinists use to precisely locate the hole?</h3>
Making a tiny divot with a Spotting Drill will help you find the drill's center when you start a plunge. Some machinists use these tools to chamfer the top of drilled holes, which is a different function for them. When inserted, screw heads sit flush with the component thanks to the chamfer.
<h3>What device do we employ to drill a hole in a part?</h3>
Most often, hole-making tools are related with drilling and drill bits. They offer a quick, simple, and affordable technique to make machined holes. Drill bits operate by axially entering the workpiece and creating a hole with a diameter.
To know more about drill visit:-
brainly.com/question/4281675
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Answer:
its energy of an objects motion due to the objects motion. kinetic energy depends on mass and speed
Explanation:
hope that helped
<3 ;)