Answer:

Step-by-step explanation:
According to the First Law of Thermodynamics, the heat received by the metal cylinder is equal to the change in the internal energy. That is:


The specific heat is clear in the previous expression and finally computed:



Answer:
270cm squared
area of shaded part rectangle is 180
are of triangle is 48 and 42 respectively you add the three to get 270
Answer:
-3
Step-by-step explanation:
Rise/Run is the basic formula for slope. The rise is 3 and the run is -1, making the answer -3.
Answer:
a force of 1250lb is exerted
Step-by-step explanation:
since the force of the wind varies jointly as the area of the surface and the square of the velocity,
let f = force
a = area
velocity =v
from the above statement, we find out that
----1
that is
-----2
where k is a coefficent of proportionality
since velocity of wind in mph,v =50
and force in lb = 20
and surface area =
from eqn 2
we have that

making k subject of the formula
we have that

that means that
---3
however, when velocity = 125mph
surface area =
putting values in eqn 3 we have
hence a force of 1250lb is exerted
<h3><em><u>Your </u></em><em><u>answer </u></em><em><u>is </u></em><em><u>here </u></em><em><u>mate</u></em><em><u>!</u></em><em><u>!</u></em><em><u>! </u></em></h3>
Y = -3/4x + 9 ...eq( 1 )
Y = -1/2x + 8 ...eq( 2 )
<em><u>Subsituting </u></em><em><u>eq(</u></em><em><u> </u></em><em><u>1</u></em><em><u> </u></em><em><u>)</u></em><em><u> </u></em><em><u>in </u></em><em><u>eq(</u></em><em><u> </u></em><em><u>2</u></em><em><u>)</u></em><em><u> </u></em><em><u>we </u></em><em><u>get</u></em><em><u>, </u></em>
-3/4x + 9 = -1/2x + 8
-3/4x + 1/2x = 8 - 9
-3x + 2x/4 = - 1
- x = -1 * 4
x = 4
<em>Thus</em><em>, </em><em>The </em><em>value </em><em>of </em><em>x </em><em>is </em><em>4</em><em> </em>
<u>Therefore</u><u>, </u>
<em>Subsituting </em><em>the </em><em>value </em><em>of </em><em>x </em><em>in </em><em>eq(</em><em>2</em><em> </em><em>)</em>
Y = -1/2 * 4 + 8
Y = -2 + 8
Y = 6
<em>Thus</em><em>, </em><em> </em><em>The </em><em>value </em><em>of </em><em>y </em><em>is </em><em>6</em>
<em>Hence</em><em>, </em><em> </em><em>The </em><em>value </em><em>of </em><em>x </em><em>and </em><em>y </em><em>is </em><em>4</em><em> </em><em>and </em><em>6</em><em> </em><em>.</em>