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2 years ago

How much do a steel BB weight?

Physics

1 answer:

pychu [463]2 years ago

6 0

Each BB 0.349 grams and 5.386 grains. 349 mg & 5.386 grains each steel BBs.

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Which of the following surface will absorb radiant heat energy best

OLga [1]

Answer:

D. Black

Explanation:

hope I help you.

3 0

2 years ago

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A 17-car train standing on the siding is started in motion by the train’s engine. 9 cm slack is between each of the cars, which

BaLLatris [955]

Answer:

4 seconds

Explanation:

There are links between cars, they are in between

1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, 11-12, 12-13, 13-14, 14-15, 15-16, 16-17.

Here 1 represents the first car which is firmly attached to the engine. So, there are 16 links and each link has a slack of 9 m.

So, total slack

9×16 = 144 cm

Speed of train = 36 cm/s

$\text{Time taken by the pulse}=\frac{Length}{speed}\\\Rightarrow \text{Time taken by the pulse}=\frac{144}{36}\\\Rightarrow \text{Time taken by the pulse}=4\ s$

Time taken by the pulse to travel the length of train is 4 seconds.

6 0

2 years ago

True or False:<br><br> It is safe to touch an electric current while soaking wet.

olganol [36]

Answer:

False

Explanation:

Water contains ions that can conduct electricity and if touched it can cause harm (aka electrocution).

8 0

2 years ago

Why couldnt mendeleev organize the entire table during his research

NARA [144]

Cause he left out the noble gases out of the periodic table for one good reason, 1: He did not know them

6 0

2 years ago

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Which fossil fuel is produced as a by-product that occurs when bacteria decompose organic material under anaerobic conditions?

Mumz [18]

Bio-gas is the naturally produced fossil fuel, a by-product when bacteria decompose organic material under anaerobic conditions.

<h3><u>Explanation:</u></h3>

Organic matter particularly waste material is broken down by bacteria through fermentation in an environmental condition without any presence of oxygen. This process of decomposition leads to formation of bio-gas with "carbon dioxide and methane" in a 2:3 ratio.

The above biological process is termed as bio-digestion or anaerobic digestion. Methane is flammable and thus bio-gas can be used as "energy source", a waste-to-energy transformation. The remaining decomposed matter is ideal as manure for plants due to its rich nutrient level.

5 0

2 years ago