bad wheel bearings
Check the power steering pump for the cause of the noise. I sounds like the pump is causing the whining and is either low on fluid or possibly going bad.
A constant force in the direction of the line
If it sounds like its coming from inside the car its probably the fuel pump if not its kind of hard to say.
A computer tower may make a surging noise rather than a constant humming noise if the case's screws are not properly tightened. Another reason for such a surging noise is the imminent failure of a fan.
Certain types of tires may cause a brief humming noise after your initial acceleration. The transmission may also cause a brief humming noise.
1999 Mercury front and humming noises can because by several things. Tire noises are the most common cause. A tire that is not wearing properly can cause a humming noise.
There are several things that can cause your 2002 Ford Taurus to hesitate when accelerating. A dirty air filter will cause the problem.
Noises are impossible to correctly diagnoise unless heard. Take it to a garage.
Most ceiling fans make a humming noise. If you feel the humming noise is unusual, you should check how attached the fan is to the ceiling, as the vibration of the fan can cause a humming noise.
Loss of power when accelerating can be caused by a number of things. A leak in the fuel line or even a bad alternator can cause this.
The forces acting on the car are unbalanced because it is accelerating by changing direction, even though it has constant speed. Unbalanced forces cause acceleration (change in motion). That is what Newton's first law of motion is about.
Bad wheel bearing
Fuel is not good!
An additional force of 3674N in the opposite direction, making the net force 0N, would provide constant acceleration. Since a = F/m, if F = 0 then a = 0, and constant velocity is when a = 0.
Bad speed sensors can cause the car to hesitate when accelerating at speeds below 20 mph. The blockage of the air filters can also cause the car to hesitate when accelerating at speeds below 20 mph.
Possibly worn wheel bearings can create a humming or groaning sound.
A clicking noise, when accelerating, can be caused by a worn CV joint. The CV joint can cause the axle to collapse when it breaks.
A bearing going bad.
Tinnitus is the cause of a humming sound in the ear. There are several things that can cause tinnitus; ear infections, wax in the ear, hearing loss from loud noises, and Meniere's disease.
Acceleration is not a change in speed, but a change in velocity. Velocity is, unlike speed, a vector, and so as the direction of velocity changes there must be an acceleration to cause that change.
Cause it can't remember the words? Probably the regulator humming. Try adjusting burner control up or down. Replace the regulator if needed.
Acceleration is scientifically defined as a change in velocity, not an increase in speed. Thus slowing down, speeding up, or changing direction are all forms of accelerating. If one is moving at a constant speed, then the only way to accelerate would be to change direction.