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arlik [135]
3 years ago
11

It's generally known that it takes 8 minutes for light to get from the Sun to the Earth. If the speed of light is 3.0 X 10^8 m/s

and the distance from the Sun to the Earth is 9.3 X 10^7 miles, is this a true statement?
Mathematics
1 answer:
harina [27]3 years ago
6 0

Answer:

  yes

Step-by-step explanation:

The time required at the given speed and distance is ...

  time = distance/speed

  time = (9.3×10^7 mi)(1.6×10^3 m/mi)/(3.0×10^8 m/s) ≈ 4.96×10^2 s

This time corresponds to 8 minutes and 16 seconds. To an accuracy of 1 significant digit, the statement is true.

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2. Find the distance between (-2,1) and (3,4).
lakkis [162]
Math Find the Distance Between Two Points (3,4) , (-2,1)
(
3
,
4
)
(
3
,
4
)
,
(
−
2
,
1
)
(
-
2
,
1
)
Use the distance formula to determine the distance between the two points.
Distance
=
√
(
x
2
−
x
1
)
2
+
(
y
2
−
y
1
)
2
Distance
=
(
x
2
-
x
1
)
2
+
(
y
2
-
y
1
)
2
Substitute the actual values of the points into the distance formula.
√
(
(
−
2
)
−
3
)
2
+
(
1
−
4
)
2
(
(
-
2
)
-
3
)
2
+
(
1
-
4
)
2
Simplify.
Tap for more steps...
√
34
34
The result can be shown in multiple forms.
Exact Form:
√
34
34
Decimal Form:
5.83095189
…
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