A student gathered two boxes of the same size made of different materials glass and clear plastic she placed them on a windowsill in the Sun for an hour and then measure the temperature of the air in each box which statement best describes the purpose of the experiment to relate the size of the box to the temperature of the air within the Box to relate the type of box material to the mass of the box to relate the type of box material to the temperature of the air within the box to relate the amount of time a box is exposed to sunlight to the temperature of air within the Box

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:

k2s for potassium sulphide

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.