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8090 [49]
2 years ago
12

Texting: what are two needs or wants that this wave technology meets it:

Physics
1 answer:
qaws [65]2 years ago
3 0

Answer:

bugs/viruses all the time and more social platforms

Explanation:

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After a marathon many runners are given a shiny, aluminium blanket to wrap around their bodies. Explain why the blanket is shiny
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The diagram shows four paths from point A to point B.
iVinArrow [24]
Path 2.

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2 years ago
Two trains are traveling side-by-side along parallel, straight tracks at the same speed. In a time t, train A doubles its speed.
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3 0
3 years ago
Light with a wavelength of 400 nm strikes the surface of cesium in a photocell, and the maximum kinetic energy of the electrons
Firdavs [7]

Answer:

The longest wavelength of light that is capable of ejecting electrons from that metal is 1292 nm.

Explanation:

Given that,

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Energy E=1.54\times10^{-19}\ J

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E = \dfrac{hc}{\lambda}

\lambda=\dfrac{hc}{E}

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\lambda=1292\times10^{-9}\ m

\lambda=1292\ nm

Hence, The longest wavelength of light that is capable of ejecting electrons from that metal is 1292 nm.

8 0
3 years ago
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