Answer:
Terminal velocity is achieved, therefore, when the speed of a moving object is no longer increasing or decreasing; the object's acceleration (or deceleration) is zero.
Explanation:
hope it helps you
de Broglie wavelength (λ) is given by the equation
λ = h/p
where h=Planck’s constant whose value is 6.62 x 10^(−34) joule-seconds and
p = momentum of the particle(here electron)
In terms of kinetic energy(E) momentum(p) can be written as,
p=(2mE)^1/2
where m=mass of the particle.
Hence λ becomes
1 λ = h(2mE)^-1/2
Given here, E = 13.6 eV = 13.6×1.6×10^-19 joule
m(mass of electron)= 9.1×10^-31 kg
Putting these values in equation (1) we get ,
λ =0.332×10^(-9) meter
=3.32×10^(-10) meter
=3.32 Å
(c) is the correct choice.
El Nino (a), Earth's orbit (b), and solar energy output (d) are all "natural" occurrences. You can't do a thing aboutum.
Fossil fuels ... or, more precisely, humanity's use of vast quantities of fossil fuels as a convenient source of huge quantities of energy ... and the subsequent increase of Carbon Dioxide in the planet's atmosphere, is not the result of "natural" processes. It's the result of human efforts to <em>alter and control</em> Nature, through <em>artificial</em> processes.
Explanation:
Introduction to the quantum mechanical model of the atom: Thinking about electrons as probabilistic matter waves using the de Broglie wavelength, the Schrödinger equation, and the Heisenberg uncertainty principle. Electron spin and the Stern-Gerlach experiment.
The chip, during the collision, has a change in momentum:
Δp = m · (v₂ - v₁)
The final speed is equal to zero, since it sticks to the spacecraft, therefore:
Δp = m · v
= 1.6×10⁻⁷ · 3×10³
= 4.8×10⁻⁴ kg·m/s
where we transformed the mass into the proper units of measurement (kg).
This change in momentum is equal to the impulse J:
Δp = J = F · t
We can solve for F
F = J / t = <span>Δp / t
= </span>4.8×10⁻⁴ / 6×10⁻⁸
= 8.0×10³ N
Hence, <span>the force exerted by the chip on the spacecraft is F = 8000N.</span>
