Measuring: length
write your answers to the questions below in the spaces provide. if you need more space, use the back of this sheet.
length is the distance between two points. length is usually measured with rulers. examine the metric ruler diagramed below. notice that the labeled units are in centimeters (cm). small vertical lines separate each centimeter into 10 sections. each of these sections measures 0.1 (or 1/10) of a centimeter, which equals 1 millimeter (mm). when you use a metric ruler, decide which of these units you will use. for example, if you measure the line in example 1 in millimeters, you would say it’s 19 mm long. if you measure in centimeters, you would say it’s 1.9 cm long.
1. how many millimeters long is line a? 36 mm
2. how many centimeters long is line a? 3.6 cm
3. how many millimeters long is line b?
4. how many centimeters long is line
5. how many millimeters long is line c?
6. how many centimeters long is line c?
hint: did you include the proper unit in each of your measurements? if not, go back and label them!
using length measurements to find area and volume
you can use metric measurements to find the area of a figure by multiplying length x width.
7. what is the length of the figure on the right?
8. what is the width of the figure on the right?
9. what is the area of the figure on the right?
plz ! worth 50

answer; ///i believe that the correct answer is (carbon); good luck

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

d eras and periods

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.