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artcher [175]
3 years ago
11

Which statement represents how light travels? Light given off from a moving source will travel faster in a vacuum. Light given o

ff from a moving source will travel faster in air. Light travels slower if the light source is moving. Light travels at the same speed even if the light source is moving.
Physics
2 answers:
BartSMP [9]3 years ago
7 0

Answer:

Light travels at the same speed even if the light source is moving.

Explanation:

I took the test, hope this helps :)

Debora [2.8K]3 years ago
4 0

Answer:

the first one

Explanation:

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A ball leaves a point P at the top of a hill with a horizontal velocity of 15 m/s as shown.
Irina-Kira [14]

Answer:

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4 years ago
A current of 1.75 A flows through a 55.4 Ω resistor for 9.5 min. How much heat was generated by the resistor? Answer in units of
kirill115 [55]

Answer:

9.67\times 10^4 J

Explanation:

We are given that

Current=I=1.75 A

Resistance =R=55.4 ohm

Time=t=9.5 min=9.5\times 60=570 s

1 min=60 s

We have to find the heat generated by the resistor.

We know that

Heat=E=I^2Rt

Using the formula

Heat,E=(1.75)^2\times 55.4\times 570=9.67\times 10^{4} J

Hence, the heat generated by the resistor =9.67\times 10^4 J

6 0
3 years ago
• How can you find the temperature in Fahrenheit when its given in the<br> Celsius scale?<br> I
Ray Of Light [21]

Answer:

there are conversion scales used for doing that

to convert Celsius to Fahrenheit we use the formula,

T(°F) = T(°C) × 9/5 + 32

and to convert Fahrenheit to Celsius we use,

T(°F) = T(°C) × 5/9 + 32

i hope this helps, please give me brainliest, i really need it

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Explanation:

4 0
3 years ago
Select the correct answer.
Sergio039 [100]
A.....................
3 0
3 years ago
Calculate the average acceleration of a car that changes speed from 0 m/s to 20 m/s in 5 s.
Vikki [24]

Answer:

4

Explanation:

a=vf-v

a=20-0÷5

a=4meter per second square

6 0
2 years ago
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