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Sindrei [870]
3 years ago
14

Which image illustrates why dark clothing helps to keep you warm on a cool, sunny day?

Physics
2 answers:
xeze [42]3 years ago
7 0

Answer:

Explanation:

I suppose it has to do with the way the diagram is drawn. The heat does not reflect which makes both A and B incorrect.

C would have nothing to do with either reflection or refraction.

That only leaves D which is the answer.

strojnjashka [21]3 years ago
5 0

Answer: D

Explanation:

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A 26-kg chandelier hangs from a ceiling on a vertical 4.0-m-long wire. what horizontal force would be necessary to displace its
-Dominant- [34]
First of all you have that the force that is in cable in its vertical posibion is:
 Fy = m * g
 Fy = (26) * (9.8) = 254.8 N
 Then, the force in horizontal direction will be:
 Tan (x) = Fy / Fx
 Clearing:
 Fx = Fy / tan (x)
 Substituting values:
 Fx = (254.8) / (0.17 / 4)
 Fx = 5995.29 N
 Answer:
 The horizontal force that would be necessary to displace its position 0.17 m to one side is 5995.29 N
8 0
3 years ago
In the recent Olympics, many records were broken and history was re-written.
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Answer:

Yes

Explanation:

On the moon there is no gravity. So if there is no gravity pulling the weight down a weight can as light as a feather.

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3 years ago
Please choose the answer that describes the scientific notation for 3,134,000,000.
Ghella [55]
The answer is B) i am 100% positive
7 0
3 years ago
Pls helppppp my last question!
nexus9112 [7]

Answer:

load

a generator, a light bulb (load) and a closed switch

Explanation:

as explained in the other question, the fan is using generated electric energy to create mechanical movement. as such it is a load on the grid or circuit or net.

and electric power can only flow, if there is a closed (uninterupted) circuit from the power source to a load and back.

any open switch is an interruption of the circuit.

a buzzer is a kind of switch. it closes the circuit (and puts a load on) only when somebody presses it.

by the way, a closed circuit without a load will "destroy" (short circuit) the power source or at least the wires (burn through).

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