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kirza4 [7]
3 years ago
9

1-10 are True or False (This is Environmental Science not physics)

Physics
1 answer:
ANEK [815]3 years ago
5 0

1) B - False

2) A - True

3) A - True

4) A - True

5) B - False

6) A - True

7) B - False

8) A - True

9) A - True

10) B - False

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Which of the following statements is true about static electricity?
natta225 [31]
Static electricity can be an alternating current.
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A rock, initially at rest with respect to Earth and located an infinite distance away is released and accelerates toward Earth.
lianna [129]

Answer:

the rock speed is increased

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Explain why the speed of light is lower than<br> 3.0 x 108 m/s as it goes through different media.
jekas [21]

Answer:

Sample Response: In a vacuum, there are no atoms or particles that interfere with the path of light. However, in other media, the speed of light is lower than 3.0 × 108 m/s because the wave is continuously absorbed and re-emitted by each atom in its path. The differences in speed are due to the composition of the medium and the density of the particles in the medium.

Explanation:

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3 years ago
Two water jets are emerging from a vessel at a height of 50 centimeters and 100 centimeters. If their horizontal velocities at t
givi [52]
For t1:

t1 = square root of 2h1 / g = square root of 2 * 0.5 / 9.8 = 0.319 sec

For t2:

t2 = sqaure root of 2h2 / g = square root of 2 * 1.0 / 9.8 = 0.451 sec

Wherein:
t = time(s) for the vertical movement
h= height
g = gravity (using the standard 9.8 m/sec measurement)

d1 = 1*0.319 = 0.319 m
d2 = 0.5 * 0.451 = 0.225 m

Where:

d = hor. distance

ratio = d1:d2
= 0.319 : 0.225
=3.19 : 2.25

The answer is 3.19 : 2.25
8 0
3 years ago
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Pros and cons of nuclear energy
Deffense [45]

Answer: Pros and cons okay

Explanation:

Pros: Produces no polluting gases. Waste is radioactive and safe disposal is very difficult and expensive.

Does not contribute to global warming.

Cons: Waste is radioactive and safe disposal is very difficult and expensive.

Local thermal pollution from wastewater affects marine life.

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3 years ago
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