Henry plans to monitor the change in concentration of an acid during a chemical reaction. he wants to collect data every 01
seconds and then to graph his data and insert it into a text document
which pair of tools would be best for henry to use?
a computer and ph paper
ph paper and a graphing calculator
a computer and a concentration probe
a graphing calculator and a concentration probe
mark this and return
save and exit
tutoring

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:

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.