A car travels at a constant rate for 100 miles going due west for one hour. Then it travels at a constant rate for another 75 mi
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Answer:
The particle momentum, p
Explanation:
A particle's de Broglie's wavelength is an indication of the scale in length where the particle's wave-like properties are important. The symbol of de Broglie wavelength is λ or given as follows;
The de Broglie's wavelength formula is given as follows;
Where;
λ = The wavelength of the particle in meters
v = The velocity of the particle in meters/seconds
m = The mass of the particle in kilograms
p = The momentum of the particle
h = Planck's constant = 6.626 × 10⁻³⁴ J/Hz
Therefore, the alternative value that we must have to successfully determine the wavelength if the mass and velocity are unknown, is the momentum, p of the particle.
Explanation:
We know that :
u = 29 mph = 12.96 m/s
S = 471 ft = 143.5 m
t = 8.5 sec
143.5 = 12.96 * 8.5 + 1/2 * a * 72.25
a = 66.68 / 72.25
a (Acceleration) = 0.92 m/sec^2
= 3.01 ft/sec^2