A cyclist is coasting at 14 m/s when she starts down a 440 m long slope that is 30 m high. The cyclist and her bicycle have a combined mass of 70 kg. A steady 13 N drag force due to air resistance acts on her as she coasts all the way to the bottom. Required:
What is her speed at the bottom of the slope?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

The substances that are necessary for producing of certain hormones and that store and transport vitamins

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.