A bus is travelling along a straight road. The bus and the driver have a combined mass of 16000kg when there are no passengers in it. The bus has 73 passengers. The average mass of each of the passengers is 65kg. The fully loaded bus accelerates uniformly from rest to a speed of 14m/s. The time taken to reach a speed of 14m/s is 20s. Calculate the resultant force on the bus during the acceleration.

How have the competing explanations' experiments on atoms affected the development of the atomic model?

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.