Answer:
engine B is more efficient.
Explanation:
We know that Carnot cycle is an ideal cycle for all working heat engine.In Carnot cycle there are four processes in which two are constant temperature processes and others two are isentropic process.
We also kn ow that the efficiency of Carnot cycle given as follows
Here temperature should be in Kelvin.
For engine A
For engine B
So from above we can say that engine B is more efficient.
Answer:
208 mg/L
Explanation:
Only Mg++ and Ca++ causes hardness not Na+
Given
Mg++ = 20 mg/L
Ca++ = 50 mg/L
=
= 208.33 mg/L 208mg/L
Examples
Creativity. -let you do out of the box things
Problem Solving-Solve situation
Critical Thinking-Sturdy fast pace thinking
Leadership-The ability to guide others
Communication-The ability to talk to others
Collaboration-Working with some one
Answer:
C. The intensity control
Explanation:
The focus adjust the sharpness of the trace. The Intensity knob adjusts the brightness of the trace by adjusting the potential of a grid controlling number of electrons reaching the screen. The level control varies the voltage required to generate a trigger. Slope control determines whether the trigger point is on the rising or the falling edge of a signal.
The correct option is therefore the intensity control.