Answer:
29 m/s
Explanation:
Acceleration is the rate of change of velocity, i.e, the change in velocity per unit time.
The driver made the car to accelerate at 3 m/s^2. That means than in every second the velocity of the car increased by 3 m/s. Therefore in four seconds its velocity would increase by 3m/s x 4 = 12m/s. Starting with an initial velocity of 17 m/s the final velocity would be 17 m/s + 12 m/s = 29 m/s.
__Hello__
Here is the answer: <em>''</em><em>Atom is the smallest unit of living things.''</em>
<em />
One more information: <em>''</em><em>Atoms contain electrons, neutrons, and protons.</em><em>''</em>
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__Have a great day!__
<u><em>-userKate</em></u>
Answer:
KE=1.366×10⁻¹⁶J or
KE=854ev
Explanation:
single slit diffraction pattern occur where sinФ=mλ/a for m=±1,±2,±3,.......
Here λ is wavelength
The spacing between successive minima is then
Δy=
Δy=λ(L/a)
as given Δy=2.10cm, L=25cm and a=0.500nm
so for λ
λ=Δy(a/L)
λ=4.2×10⁻¹¹m
The momentum of one of these electrons is then
p=h/λ
Assuming the electron is non-relativistic, its kinetic energy is
Convert joules into electronvolt we get
KE=854ev
Answer:
Distance = 22m
Displacement = 12 + 2 - 8 =6m
i dont know my dude but thanks for the free points XD
