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olganol [36]
3 years ago
7

Can somebody help please ! a. -8.3 m/s b.-4.2 m/s c.-0.12 m/s d. 0 m/s

Physics
1 answer:
Gnom [1K]3 years ago
4 0
The answer is a
the \: answer \: is \: a.
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if there are infinite universes is it possible that there is a universe where 1+1=3 or 4 or something
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In the year 1178. five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon
Lubov Fominskaja [6]

Answer: 1.28 sec

Explanation:

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3 years ago
A photon of wavelength 192 nm strikes an aluminum surface along a line perpendicular to the surface and releases a photoelectron
alex41 [277]

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Explanation:

Given that

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So energy of photon,E

E=\dfrac{hC}{\lambda }

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h=6.6\times 10^{-34}\ m^2.kg/s

C=3\times 10^{8}\ m/s

E=\dfrac{6.6\times 10^{-34}\times 3\times 10^{8}}{192\times 10^{-9} }

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We know that

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KE=\dfrac{P^2}{2m}

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KE=3.529\times10^{−27}\ J

5 0
3 years ago
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