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bulgar [2K]
4 years ago
15

Sliding a box is work against friction. Answer in short.​

Physics
1 answer:
leva [86]4 years ago
5 0

Answer:

Sliding a box is work against friction because force applied to move the box is in oppose of friction.

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Which is an example of electrical energy being converted or changed into light energy?
Lera25 [3.4K]
When I see the word "which" at the beginning of your question,
I just KNOW that there's a list of choices printed right there
next to he part that you copied, and for some mysterious
reason, you decided not to let us see the choices.

Any flashlight, light bulb, laser, or spark ... like lightning ...
converts some electrical energy into some light energy.

8 0
3 years ago
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This picture represents<br> A: Reflection<br> B: Refraction<br> C: Interference<br> D: Diffraction
-BARSIC- [3]

Answer:

I think it's a because it goes thru it and reflects

5 0
2 years ago
Which of the following is a vector quantity?
gizmo_the_mogwai [7]

Answer:

B. 30 m down

Explanation:

In physics we have two types of quantities:

- Scalar quantity: it is a quantity which only has a magnitude (e.g: mass and time are scalar quantities, since they only have a magnitude)

- Vector quantity: it is a quantity which has both a magnitude and a direction (e.g: velocity is a vector quantity, since it has a magnitude (the speed) and a direction)

In this problem, we have:

A. 100 ounces of water  --> scalar (this is a volume, which has only a magnitude)

B. 30 m down  --> vector (this is a displacement, which has both a magnitude (30 m) and a direction (down)

C. 88 mi/s  --> scalar (this is a speed, which has only a magnitude)

D. 45 gallons in a bucket --> scalar (this is a volume, which has only a magnitude)

So, the correct option is B.

4 0
3 years ago
20. Which scientist's Gold Foil Experiment led him to discover the nucleus of an atom?
julsineya [31]
Hello,

Here is your answer:

The proper answer to your question is option A "Rutherford". Rutherford discovered the nucleus of a atom!

Your answer is A.

If you need anymore help feel free to ask me!

Hope this helps!


7 0
3 years ago
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What does a wedge do
maxonik [38]
It can be used to separate two objects or portions of an object, lift up an object, or hold an object in place.
4 0
4 years ago
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