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3 years ago

7

Use the following statements to determine if the disjunction is true or false. p: 7 is an odd number q: 3 is the square root of

9 is p q true or false? true false

1 answer:

kotykmax [81]3 years ago

3 0

P and q are both true

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The location(s) an electron can occupy around the nucleus depends on the electron's ____________.

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I think that it is mass?

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Question 7 of 10<br> What is cos(22")?<br> O A. 0.93<br> B. 0.22<br> C. 0.37<br> O D. 0.40

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What is the main difference between analog anddigital technology?a. Digital technology reproduces sound more faithfullythan anal

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Answer b)

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The correct answer is that analog technology stores information as sound-waves, while digital technology stores it as strings of ones and zeroes. So pick answer b)

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3 years ago

What is the area of space around a magnet called?

erma4kov [3.2K]

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3 years ago

A photoelectric experiment is performed where green light with a wavelength of 546.1 nm is shined on a metal plate, creating a p

PtichkaEL [24]

Answer:

$\phi=1.55 [eV]$

Explanation:

We can use the work function equation for a photoelectric experiment:

$\phi=\frac{hc}{\lambda}-K_{max}$

h is the plank constant
c is the speed of light
λ is the wave length
K is the kinetic energy (or K=eΔV)

So we will have:

$\phi=\frac{hc}{\lambda}-e\Delta V$

$\phi=\frac{6.63*10^{-34}*3*10^{8}}{546.1*10^{-9}}-0.728eV$

$\phi=3.64*10^{-19}[J]-0.728 [eV]$

$\phi=(3.64*10^{-19}[J]*\frac{1eV}{1.6*10^{-19}[J]})-0.728 [eV]$

$\phi=2.28 [eV] - 0.728 [eV]$

$\phi=1.55 [eV]$

I hope it helps you!

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4 years ago

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