Pls in a rush to get this assignment done !

theoretical research in physics has seen an ever-increasing use of computer simulations to supplement laboratory experiments. which statement best describes a crucial effect of these simulations? a) computer simulations provide more accurate data than real experiments. b) computer simulations have shown the limitations of the known laws of physics. c) computer simulations have enabled physicists to uncover fundamental physical laws d) computer simulations allow physicists to develop models where experiments are difficult.

volume: 22

density: 7.04

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:

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.