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svlad2 [7]
3 years ago
13

If anyone knows please anwser

Physics
2 answers:
Ronch [10]3 years ago
8 0

Answer:

c. Radio and T.V. signals

Nonamiya [84]3 years ago
4 0

Answer:

C.

Explanation:

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Which countries have high productivity, but are not among the top 10 for human development? Check all that apply.
trasher [3.6K]

Answer:

Belgium

France

Luxembourg

Explanation:

These are the ones that are in the High Productivity chart, but not in the HDI chart

8 0
3 years ago
The equation T^2=A^3 shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A
kobusy [5.1K]

Answer:

D. 2^(3/2)

Explanation:

Given that

T² = A³

Let the mean distance between the sun and planet Y be x

Therefore,

T(Y)² = x³

T(Y) = x^(3/2)

Let the mean distance between the sun and planet X be x/2

Therefore,

T(Y)² = (x/2)³

T(Y) = (x/2)^(3/2)

The factor of increase from planet X to planet Y is:

T(Y) / T(X) = x^(3/2) / (x/2)^(3/2)

T(Y) / T(X) = (2)^(3/2)

3 0
3 years ago
A ray of light bends upon entering a new medium. What is this phenomenon called?
Ainat [17]
Refraction is a phenomenon which results when a ray of light enters from one medium to another medium. When a ray of light enters from denser medium to rarer medium, it bends away from the normal. The laws of refraction are: The incident ray, the refracted ray and the normal all lie in the same plane.
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2 years ago
Which of the following was NOT a department in Washington's first cabinet?
Bingel [31]

Answer:

I believe its C: Secretary of War. I hope this helped :)

Explanation:

6 0
3 years ago
Read 2 more answers
which of the following is not a projectile? a.a satellite b.a throw ball c.a ball on the ground d.a soaring arrow
Delvig [45]
C a ball on the ground
7 0
3 years ago
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