Answers: 2
Physics, 22.06.2019 04:30
Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j
Answers: 1
Physics, 22.06.2019 11:00
Which sound characteristic is not affected by the relative motion of an object
Answers: 2
Physics, 22.06.2019 16:50
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.
Answers: 2
A car starts from rest and travels with a uniform acceleration to a final velocity of 20m/s in 4seco...
Mathematics, 06.04.2020 00:53
Mathematics, 06.04.2020 00:53
Geography, 06.04.2020 00:53
English, 06.04.2020 00:53
Mathematics, 06.04.2020 00:53
Physics, 06.04.2020 00:53
Mathematics, 06.04.2020 00:53
Business, 06.04.2020 00:53
Mathematics, 06.04.2020 00:53