The diagram above shows the feedback loop of a home heating system. What will happen in the system if the thermostat breaks while the furnace is off?
A.
The temperature will go above the thermostat temperature.
B.
The whole system will no longer function properly.
C.
The fans will start to blow warm air.
D.
Only the furnace will be affected.

What is the length x of the side of the triangle below? (hint: use the cosine function)

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.