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kompoz [17]
3 years ago
12

The electric eye that prevents an elevator door from closing when you are in the doorway relies upon which physics principle?

Physics
2 answers:
denis-greek [22]3 years ago
5 0
Just took the test as well that dude is right.. lol I rested my grade in your hands and I got an A.. for more help with that test all answers on here are 100% correct: https://quizlet.com/212791759/1007-unit-10-test-part-1-flash-cards/ 
goblinko [34]3 years ago
3 0
It's Photoelectric Effect, I just a test with this same question. I am not good for explaining exactly how, but I was right.
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An automobile accelerates 1.77 m/s2 over 6.00 s to reach freeway speed at the end of an
GaryK [48]

Answer:

Startinfg speed is 13.82 m/s

Explanation:

Use equation for realtion between start and final speed :

Vf=Vs+a*t

Vf-final speed

Vs-start speed

Vf=24.44m/s

a=1.77m/s²(acceleration)

t=6.00s(Time)

Vf=Vs+a*t

Vs=a*t-Vf

Vs=1.77m/s²*6s-24.44m/s

Vs=-13.82m/s

6 0
3 years ago
Please somebody answer I desperately need help!
padilas [110]
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8 0
4 years ago
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A. make an argument for halting the advances of technology? b. make an argument for continuing advances in technology
Naddik [55]
<span>Halting advances in tech could be useful because the automation in many tasks has rendered the human touch obsolete in many lower-level positions. They can be done by machines without the need for stoppage time for breaks. Continuing technology can be useful because it can increase output and make it easier for people to get what they're wanting or needing without spending extravagant amounts of resources.</span>
6 0
4 years ago
Technician a says heat transfer is always hot to cold. technician b says high pressure always flows to low pressure. who is corr
r-ruslan [8.4K]

Both the technician are correct.

All the driving force in the universe always flow from the higher body to lower body, until unless acted by external forces. Which means heat always flow from a hotter body to colder body, high pressure always flow to low pressure.

Therefore the both the technician are correct.

5 0
3 years ago
What type of bulb is unaffected ​
emmasim [6.3K]
<h2>A N S W E R : –</h2>

  • c) Parallel

Nothing happens to the brightness of the light bulbs in the parallel circuit if the power supply is capable of supplying the additional current.

3 0
2 years ago
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