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Nostrana [21]
3 years ago
7

A physicist is investigating a beam of laser light of wavelength 550 nm. The light strikes a target that is 189 meters away from

the source of the light. What is the travel time of the light from the source to the target? Let the speed of light c = 3.00 × 10^8 m/s.
Physics
1 answer:
Lena [83]3 years ago
8 0

Answer: here you go I was looking for this answer everywhere,I have it now so it’s 6.30 x 10^-7 s

Explanation:

I hope this helps☺️

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Vlada [557]
The correct answer is the last one:
A and C are different elements, while D is an isotope of C.

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7 0
3 years ago
2. Determine the current in a 120-watt bulb plugged into a 120-volt outlet.
Sergio039 [100]

Answer:

1 ampere

Explanation:

Power = VI

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Given

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Therefore

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daser333 [38]

Acceleration = (change in speed)/(time for the change)

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Time for the change = 5.00 seconds

Acceleration = (-10 m/s) / (5 sec)

<em>Acceleration = -2 m/s²</em>

That's choice-A .

8 0
3 years ago
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Answer: 1 inclined plane  and box mover trolley

2 screw and drill

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Answer:

Sorry @Josh2013, the answer is B. heart beating.

Explanation:

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