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user100 [1]
3 years ago
14

please help !!!!! please note that two images are there................ i am urgently needs this question

Physics
1 answer:
ddd [48]3 years ago
7 0

Answer:

can you tell me about this property

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describe what happens when light strikes a translucent material, transparent material , opaque material . give one specific exam
CaHeK987 [17]

Answer: according to https://www.doe.virginia.gov When light strikes translucent materials, only some of the light passes through them. The light does not pass directly through the materials. ... Opaque objects block light from traveling through them. Most of the light is either reflected by the object or absorbed and converted to thermal energy.

Explanation:

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3 years ago
The main purpose of the turbine in the turbojet engine is to
AnnZ [28]
<span>The correct answer is A. drive the compressor. It's not D because the compressor compresses it, not the turbine. The temperature and the velocity of gasses are unrelated to this. There are in fact two turbines, and the first one gets power from exhaustion, which is then used to power to turbine in the turbojet that is used to drive the compressor. This is how turbojets commonly work.</span>
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3 years ago
The ability of a material to transfer heat or electric current is called
OleMash [197]

Answer:

conductivity

Explanation:

6 0
3 years ago
A car collides into a concrete wall going 25.0 m/s . It stops in 0.141 seconds and has a change in momentum of 39,400. What is t
vodka [1.7K]

Answer:

Mass of the car is 1576 kg.

Explanation:

Let the mass of the car be m kg.

Given:

Initial velocity of the car is, u=25\ m/s

As the car stops, final velocity of the car is, v=0\ m/s

Change in momentum is, \Delta p=39400

Now, we know that, momentum is given as the product of mass and velocity.

So, change in momentum is given as:

\Delta p=m(u-v)\\39400=m(25-0)\\39400=25m\\m=\frac{39400}{25}\\m=1576\ kg

Therefore, the mass of the car is 1576 kg.

4 0
3 years ago
What are the properties of metal that make it a usful material for electricians
steposvetlana [31]
A property of a metal is that it has delocalised electrons, electrons that are mobile and free to move throught the structure, thus a metal can conduct electricity
8 0
3 years ago
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