Indicate which of the following statements are correct. an unstable atmosphere: (a) causes turbulence to be damped; b) usually results in a vertical profile of the horizontal wind velocity that is more uniform tharn that of a stable atmosphere; causes the mean horizontal wind velocity to be larger (on a regional scale) than that ofa neutral atmosphere; (c) (d in the surface layer is favorable to disperse the pollutants; (e) is likely to be found over a deep lake in the spring, when warm air blows over the water

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:

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2