Answer:
Cooking will be shortest when the househusband covers the beef stew with the heavy lid.
Step-by-step explanation:
The explanation for this is that water boils at 100°C at normal atmospheric pressure & it remains at that temperature until all the water evaporates as steam; the temperature can then go higher in steam form.
So, if he leaves the pan uncovered the pressure above the beef stew will be the atmospheric pressure and the temperature of the stew will not pass the 100°C mark and the food cooks at 100°C.
If he places a light lid on top, the pressure will build up & the temperature at which water remains liquid is a bit higher, but eventually the steam will push the lid to escape thereby releasing pressure & reducing the temperature.
If he puts a heavy lid on the pan the pressure can build up the highest and the temperature of the water in the stew will stay the highest ensuring the fastest cooking.
Basically, the heavier the lid, greater the pressure in the pan. As the pressure gets greater, the saturation temperature at which water starts boiling will be higher. And higher boiling temperatures mean shorter cooking times.
Answer:41
Step-by-step explanation: Multiplication and division goes first so 8x5=40 12x1/3=4 so 40-4+5 and you do addition and subtraction left to right 40-4=36+5=41
Answer:- The pressure 'p' will be infinity at volume 'V'=0.
Explanation:-
The given equation :- 
where p is a rational function dependent on V.
A rational function is undefined for denominator = 0.
In the given function V is the denominator , if V=0 then the function will be undefined.
⇒ p will approach to zero at V=0.
For assistance see the attachment , the graph of the given function represented by vertical assymptote which approaches to 0 but never touches it..
Answer:
the price is approximately $12.75
Step-by-step explanation:
Answer:
x=-2
Step-by-step explanation:
