This is really important and i wanna understand it's just too complicated for

a physics student carries a model rocket from his car 150. m n along a sidewalk and 200. m e into a field to the launch site. he then launches the rocket to an altitude of 500. m. find the rocket’s distance from the car when it reaches its highest altitude.

559 m

Explanation:

You can use distance formula for 3 dimensions:

d = √((x₂ − x₁)² + (y₂ − y₁)² + (z₂ − z₁)²)

d = √(150² + 200² + 500²)

d ≈ 559

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:

i guess it’s a and b