Exercise 3:
A truck engine of mass 5,000 kg is pulling a trailer of mass 1,000 kg along a level track
at an acceleration of 0.10 m/s2. The resistances are 10 N per 1,000 kg for the truck
engine and 5 N per 1,000 kg for the trailer.
5,000 kg
a = 0.10 m/s2
1,000 kg 10
00 0 0
1,000 kg
towbar
(a) Draw a free body diagram of the engine and the trailer.
(b) Calculate: (i) the tension in the connecting tow bar between the engine and the
trailer, and
(105 N)
(ii) the forward thrust exerted by the engine.
(655 N)
END

i'm just gonna leave this comment here, so i can get a challange done-

explanation:

it about 600 mph from what i calculated

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia