Answer:
True
Explanation:
The CNC is the primary interface between the machine operator and the machine.
I attached a photo that explains and gives the answer to your questions. Had to add a border because the whole picture didn’t fit.
Answer:
d
Explanation:
is the because that's the amount of work in making machine can do producing heat
Answer:
T_warm = 47.22 C
Explanation:
Using energy balance for the system:
m_1*h_1 + m_2*h_2 = m_3*h3 ... Eq1
h_i = c_p. T_i ... Eq 2
m_1 + m_2 = m_3 ... steady flow system (Eq 3)
Substitute Eq 2 and Eq3 in Eq1
m_3 = 0.8 + 1 = 1.8 kg/s
(0.8)*(4.18)*( 348-273) + (1)*(4.18)*( 298-273) = 1.8 * 4.18 *T_3
T_3 = 355.3 / (1.8*4.18) = 47.22 C
