Answer:
The volumetric flow rate through the slot is 0.05472 m^3/s
Explanation:
Volumetric flow rate = peak velocity × slot width × slot height
Peak velocity = 0.8 m/s
Slot width = 114 mm = 114/1000 = 0.114 m
Slot height = 0.6 m
Volumetric flow rate = 0.8 m/s × 0.114 m × 0.6 m = 0.05472 m^3/s
Answer:
Mechanic: a person who <u>repairs and maintains machinery</u>
Mechanical engineers: design <u>power-producing machines</u>
Explanation:
Answer:
TRUE
Explanation:
Steel has low carbon percentage than cast iron.
Steel has carbon content around 2% where as cast iron has carbon content around 4%.
hence, more the carbon percentage more brittle is the material i.e. cast iron is brittle in nature and steel is ductile in nature.
that is why steel is used in various material. It is used from utensil to huge structures.
The search using the customer name, not the customer number is as follows
<u>Explanation:</u>
<u>Using JOIN
</u>
Apply the natural join on the customers, orders, the order items & the books table. Where the Customer table contains the details of the customer and the order , the order items table will contain details about order of the books given by the customer.
SELECT Title, Paid Each- AS Profit From CUSTOMERS natural join ORDERS natural join ORDERITEMS natural join BOOKS Where FirstName = 'Jake' AND Last Name = 'Lucas' Order BY Order Date, Profit;
Answer:
The true statements are statements 1 and 4.
Explanation:
1. Heavier atoms possess greater entropy at a given temperature than lighter atoms- True.
Concerning atomic substances, heavier atoms possess greater entropy at a given temperature than lighter atoms, which is a result of the relation between a particle's mass and the spacing of quantized translational energy levels.
2. The weight of an atom has no effect on entropy - False.
The entropy of a substance increases with its molecular weight, complexity, and with temperature.
3. Molecules with greater numbers of atoms are associated with lower entropy - False.
Any chemical reaction that increases the number of molecules also increases entropy as a chemical reaction that increases the number of molecules would be a reaction that pours energy into a system.
4. The entropy of a substance is influenced by the structure of the particles that comprise the substance - True.
The structure of the particles (atoms or molecules) in a substance influences its entropy.
For molecules, greater numbers of atoms (regardless of their masses) increase how the molecules can vibrate and thus the number of possible microstates and the system entropy.