A 3 kg particle with a charge of 3 C, is moving at 10 m/s ne…

A 3 kg particle with a charge of 3 C, is moving at 10 m/s near a bar magnetic with a magnetic field strength of 3 T as shown below. a. Sketch the magnetic field lines of the magnetic. Screen Shot 2024-07-24 at 2.37.38 PM.pngb. Calculate the magnetic force on the particle due to the magnet.  c. A second identical magnet is place in the same region, sketch the field lines.  Screen Shot 2024-07-24 at 2.38.31 PM.pngd. Calculate the net magnetic force on the particle due to both magnets. 

ambulance.jpg An ambulance traveling down a road at constant…

ambulance.jpg An ambulance traveling down a road at constant speed emits sound waves from its siren of frequency 350 Hz. A person stands on the side of the road with a detector which registers sound waves at a frequency of 450 Hz as the ambulance moves away from them. Assume the speed of sound in air is 343 m/s. a. Calculate the speed at which the ambulance is moving. b. If the ambulance is moving toward the person what is the observed frequency? c. Name the phenomenon that describes the change in frequency observed by the woman. d. Explain one practical application of this phenomenon.