3 years ago

The approximate length of an unsharpened number 2 pencil is

Physics

1 answer:

Paul [167]3 years ago

6 0

The common #2 pencil is 7 1/2 long with a wooden shaft measuring about 6 3/4

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Two masses (5.3kg and 7.5kg) are fastened together with a small amount of explosive. They are loaded into a spring gun that is t

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Answer:

8.2

Explanation:

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3 years ago

Simplifying fractions<br>30 over 54

Veronika [31]

Answer:

5/9

Explanation:

First, find a common factor for 30 and 54.

30 and 54 can both be divided by 2.

30 divided by 2 = 15

54 divided by 2 = 27

So, your new fraction is 15/27.

However, don't stop there.

15 and 27 can both be divided by 3 as well.

15 divided by 3 = 5

27 divided by 3 = 9

So, your final answer is 5/9.

I hope this helps! :)

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3 years ago

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The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.55 g of conden

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Answer:

m = 62.14 g

Explanation:

Energy used to melt the ice is the energy released by the condensation of the water forms on the glass

so here we have

energy for the condensation of water is given as

let mass of water condensed = m

$E = m_1 L_f$

now the energy of vaporization is given as

$E = m_2 L_v$

here we know that

$L_f = 79.8 kCal/kg$

$L_v = 580 k Cal/kg$

Now we have

$8.55 \times 580 = m \times 79.8$

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3 years ago

What is the momentum of a vehicle that has a mass of 800 kg and is moving at a velocity of 5 m/s

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Answer:

4000 kg.m/s

Explanation:

p=mv

m=800 kg

v=5 m/s

p=(800)(5)= 4000 kg.m/s

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3 years ago

Find the work done lifting a 290-pound weight 28 feet in the air.

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3 years ago

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