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Helga [31]
2 years ago
9

P waves can travel through Earth's outer core, but S waves cannot. Because of this, scientists know

Physics
2 answers:
eduard2 years ago
5 0

Answer:

The answer is B

please mark me brainliest

Explanation:

Thepotemich [5.8K]2 years ago
5 0

Answer:

The answer is C

Explanation:

<h2>The outer core is about 1,400 miles thick, and it's made mostly of a combination (called an alloy) of <u><em>iron</em></u> and nickel, along with small amounts of other dense elements like gold, platinum, and uranium.</h2>

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please vote my answer brainliest! thanks.
7 0
3 years ago
In metal wires the charged particles that move are A. protons B. electrons C. neutrons D. none of the above
VashaNatasha [74]

Answer:

the answer is B: electrons

Explanation:

4 0
4 years ago
Read 2 more answers
2) A traffic light of weight 100 N is supported by two ropes as shown. Let T1 and T2 are the tensions.
GarryVolchara [31]

Hi there!

a.

We know that:

\Sigma F_y = 0 \\\\\Sigma F_x = 0

Begin by determining the forces in the vertical direction:

W = weight of traffic light

T₁sinθ = vertical component of T₁

T₂sinθ = vertical component of T₂

b.

The ropes provide a horizontal force:

T₁cosθ = Horizontal component of T1

T₂cosθ = Horizontal component of T2

Thus:

0 = T₁cosθ  - T₂cosθ

T₁cosθ = T₂cosθ

T₁ = T₂

c.

Since the angles for both ropes are the same, we can say that:

T₁ = T₂

Sum the forces:

ΣFy = T₁sinθ + T₁sinθ - W = 0

2T₁sinθ = W

d.

Now, we can begin by solving for the tensions:

2T₁sinθ = W

T_1 = T_2 =  \frac{W}{2sin\theta} = \frac{100}{2sin(37)} = \boxed{83.08 N}

8 0
3 years ago
which item requires the least energy to increase its temperature? the items are the towel, the sand, or the water
Travka [436]
I believe it might be sand
7 0
3 years ago
An object is 1.0 cm tall and its erect image is 5.0 cm tall. what is the exact magnification?
ikadub [295]
The exact magnification of the objects is calculated by dividing the cinema. We calculate it by diving the erect image size by the object size. From the given above, we find the exact magnification by dividing 5.0 cm by 1.0 cm. Thus, the answer would be 5. 
7 0
3 years ago
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