Answer:
e
Explanation:
i took it myself and got it right
The answer is B.) I took the test.
Answer:
a. All the laboratory equipment given are very basic equipment used in all the laboratories. Name of each equipment is as follows:
- V refers to the tape measure.
- W refers to dropper.
- X refers to an inoculating loop.
- Y refers to a stopwatch.
- Z refers to the microscope.
b. Use of each laboratory equipment identified is:
- Tape measures (V) is used to measure the length of objects or distance in a laboratory.
- Dropper (W) is used to measure unit of drop required to dispensed as one drop or several drops in any experiment.
- Inoculating loop (X) is used by microbiologists to cultivate microbes on plates and retrieving an inoculum from a culture of microorganisms.
- Stopwatch (Y) is used to measure the time of any experiment.
- Microscope (Z) is used to magnify an object to look at it in detail.
The first thing you should know for this case is that density is defined as the quotient between mass and volume:
D = M / V
In addition, you should keep in mind the following conversion:
1Kg = 1000g
Substituting the values we have:
D = (23.0 * 1000) / (2920) = 7.88 g / cm ^ 3
answer
the density of the iron plate is 7.88 g / cm ^ 3
