Answer:
c
because oil is preventing corrosion and rust
Complete question:
If it took a 30m³ capacity tank mediated by 2cm waterproof water faucet for 10 hours, calculate the flow speed (exit) of water from the tank.
Answer:
the flow rate of the water from the tank is 0.05 m³/min
Explanation:
Given;
volume of water in the tank, v = 30 m³
length of the waterproof faucet, L = 2cm = 0.02 m
duration of water flow through the tank, t = 10 hours
The flow rate of the water from the tank is calculated as;
Therefore, the flow rate of the water from the tank is 0.05 m³/min
Answer:
Following are given the answers one-by-one with explanation:
(a) 8 records
As records are the horizontal rows of data and we have 8 of them.
(b) 5 fields
As fields are vertical columns of data and we have 5 of them.
(c)E3000
As by sorting Makers_names in ascending order the last one would be Rany and by sorting Processor_type we have two option with Rany that are B1500 and E3000. We can see that E3000 will come at the end.
(d) Computer_type
As only two choices (Laptop and PC ) are being used under the column computer_type so it can be amended to contain Boolean data.
(e) format check
This will check that the field should contain one alphabet (capital letter) followed by 4 digits each.
i hope it will help you!