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larisa [96]
3 years ago
9

How much heat is absorbed when 4.0 grams of steam, H20 (g), is heated from

Mathematics
1 answer:
nadezda [96]3 years ago
5 0

Answer:

297.6 J

Step-by-step explanation:

Given that,

Mass, m = 4 grams

We need to find how much heat is absorbed when 4.0 grams of steam is heated from  120°C to 160°C.

We know that heat absorbed is given by :

Q=mc\Delta T

Where c is specific heat of water

Put all the values, we get :

Q=4\times 1.86\times (160-120)\\\\=297.6\ J

So, 297.6 J of heat is absorbed.

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Answer:

It is 1/11

Step-by-step explanation:

Apply the rule a/c +- b/c = a+-b/c

=8-7/11

=1/11

8 0
4 years ago
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-1.2= y/2.4 -1.7<br> Solve for y
evablogger [386]

{\huge{\boxed{\sf{Question}}

-1.2= y\div2.4 -1.7

Solve for y

{\huge{\boxed{\sf{Answer\:with\:explanation }}}

let's put our equation first

-1.2= y\div2.4 -1.7

Flip the equation

y\div2.4-1.7=-1.2

Now follow the rule of BOMDAS/PEMDAS

{\huge{\boxed{\sf{BOMDAS }}}

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{\huge{\boxed{\sf{PEMDAS}}}

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_________________________

{\huge{\boxed{\sf{Solve\:the\:equation}}}

_________________________

y\div2.4-1.7=-1.2

{\underline{simplify}}

0.416667y-1.7=-1.2

add 1.7 to both sides

0.416667y=0.5

Divide both sides by 0.416667

y=1.2

{\huge{\boxed{\sf{Answer}}}

y would equal 1.2

4 0
3 years ago
Where is the center of CD given C(-6, 12) and D (13, 20)?
Law Incorporation [45]
(3.5, 16)

Midpoint Formula is 
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Theorem: A line parallel to one side of a triangle divides the other two proportionately.
Elenna [48]

Answer:

Segment BF = 16 is true.

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Since, DE is parallel to BC, so DE will divide AB and AC proportionally.

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\frac{AE}{EC}  = \frac{AD}{DB}

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Again, since, EF is parallel to AB, so EF will divide BC and AC proportionally.

Hence, \frac{CE}{AE}  = \frac{FC}{BF}

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{Since, given that AE = 12, EC = 18 and FC= 24}

⇒ BF = 16.

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