The piece of unknown metal is in thermal equilibrium with water such that Q of metal is equal to Q of the water. We write this equality as follows:
-Qm = Qw
Mass of metal (Cm)(ΔT) = Mass of water (Cw) (ΔT)
where C is the specific heat capacities of the materials.
We calculate as follows:
-(Mass of metal (Cm)(ΔT)) = Mass of water (Cw) (ΔT)
-68.6 (Cm)(52.1 - 100) = 42 (4.184) (52.1 - 20)
Cm = 1.717 -----> OPTION C
Answer:
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Answer:
T is at (13,-6)
Step-by-step explanation:
x-coordinate of T: from -9 to 2, there's 11 units, so you add 11 to 2 to find the x-coordinate of T, which is 13.
y-coordinate of T: from 4 to -1 there's -5 units, so you subtract 5 from -1 to find the y-coordinate of T, which is -6.
Answer:
c
Step-by-step explanation:
Answer:
x-intercept : 4
y-intercept : 22
Step-by-step explanation:
The equation is given as ;
11x + 2y = 44
write the equation in form of y= mx + c where c is the y-intercept and m is the gradient.
11x + 2y = 44
2y =-11x + 44 ----divide each term by 2 as;
y= -11/2 x + 44/2
y= -5.5 x + 22 ------equation of the graph
y-intercept is 22
x- intercept is the value of x when y=0
y= -5.5 x + 22
0 = -5.5 x + 22
5.5 x = 22
x = 22/ 5.5
x= 4
You can also plot a graph to view the relationship ;