Problem 5:
suppose you carry out an experiment to determine the value of t. your experiment yields a
value of 3.23. the actual value of it is known to be 3.141593 out to six decimal places. find the
percent relative error of your measurement.
because measurements can contain both random and systematic errors, we need a way of
deciding whether a measurement agrees with the expected or known value within the limits of
the precision of the measurement. there are two equivalent ways of making this
determination.
suppose a time measurements and its uncertainty are reported to be 3.46 + 0.05 s and the
accepted time is 3.59 s. unless there is a systematic error causing a disagreement between our

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:

the answer would be   dignified - apex

the answer is 3.1 his answer is wrong mines is right

a electromagnetic waves