How much total energy does this truck put out?
To do work, this truck uses energy stored in chemical fuel
and an electrical battery.
50 J
250 3
400 3
08003
Input
energy
2J
Kinetic
energy
400 J
Heat
250 J
Friction
150 J

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.