The motion of a very massive object can be minimally affected by what would seem to be a substantial force. consider a supermarket, with a mass of 3.2 x 10^8 kg. suppose you strapped two jet engines (thrust force of a small jet engine is 5 n) onto the sides of the tanker. ignoring the drag of the water (which, in reality, is not a very good approximation), how long will it take the tanker, starting from rest, to reach a typical crushing speed of 6.0 m/s?

5.3 hours

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

a = Acceleration

m = Mass

Force

The force generated by the jet engines is 100000 N

From Newton's Second law

Equation of motion

It will take 5.3 hours to reach a speed of 6 m/s

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:

not moving. pos accel,