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amm1812
3 years ago
5

Pls help quick with all of them!!!! I WILL GIVE BRAINLIEST!

Physics
1 answer:
nika2105 [10]3 years ago
5 0

Answer:

Matching

1-d

2-e

3-a

4-c

5-b.

Fill in the blanks.

6.Levers and inclined planes

7. simple machine

8. Complex machines

9. complex

10. inclined plane

Multiple Choice

11. d

12. b

13. d

Explanation:

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stepladder [879]

Answer:

The gravity of the Sun keeps the planets in their orbits. They stay in their orbits because there is no other force in the Solar System which can stop them.

Explanation:

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Which best describes her speed and velocity? (There are 60 seconds in 1 minute.) Her speed is 4.4 m/s, and her velocity is 0 m/s
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Answer:

A

Explanation:

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Potential energy of an apple is 6j. the apple is 3.00m high. what is the mass of the apple?​
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Answer:

0.2 kg

Explanation:

PE = mgh

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3 years ago
Most cancer-causing air pollutants are found outdoors. True False
natta225 [31]
This is most likely True. However, it could be also False. Let me explain. 

There are many air pollutants that can be found outdoors and indoors. It does depend on what kind of indoor environment we're talking about. And also what kind of outdoor environment we're talking about. In both cases it depends on the context. If the indoor environment is quite toxic, then of course, there would be less cancer-causing air pollutants for a person outside. And the same is true for the other way around. 
8 0
3 years ago
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A planar electromagnetic wave is propagating in the +x direction. At a certain point P and at a given instant, the electric fiel
jeka94

Answer:

B=2.74\times 10^{-10}\ T

Explanation:

It is given that,

A planar electromagnetic wave is propagating in the +x direction.The electric field at a certain point is, E = 0.082 V/m

We need to find the magnetic vector of the wave at the point P at that instant.

The relation between electric field and magnetic field is given by :

c=\dfrac{E}{B}

c is speed of light

B is magnetic field

B=\dfrac{E}{c}\\\\B=\dfrac{0.082}{3\times 10^8}\\\\B=2.74\times 10^{-10}\ T

So, the magnetic vector at point P at that instant is 2.74\times 10^{-10}\ T.

3 0
3 years ago
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