At rest, a car’s horn sounds the note a (440 hz). the horn is sounded while the car is moving down the street. a bicyclist moving in the same direction with one-third the car’s speed hears a frequency of 415 hz. (a) is the cyclist ahead of or behind the car? (b) what is the speed of the car?

Which seasons are the northern and southern hemispheres experiencing in the image? it is summer in both the northern and southern hemispheres. it is summer in the northern hemisphere and winter in the southern hemisphere. it is winter in both the northern and southern hemispheres. it is winter in the northern hemisphere and summer in the southern hemisphere.

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?