1. Which statements are key ideas from the article about Barry
Bonds? Mark the two that apply.
A) No players were chosen for the Baseball Hall of Fame in 2013.
B) Barry Bonds hit a home run on August 7, 2007.
C) Some performance enhancing drugs have medical uses.
D) People disagree about whether baseball players accused of using
performance-enhancing drugs should join the Hall of Fame.

its c because its his point of view

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: