You are outdoors when you hear the constant chirp of a still cricket. you start walking toward the cricket and at some point you are able to detect that the intensity of the chirp of the cricket has increased by a factor of 4.1) what of the following statements is true at your new position with respect to the cricket? 2) the power delivered by the sound wave you hear has doubled.3) the speed of the sound wave emitted by the cricket has decreased by a factor of 4.4) the distance between you and the cricket has decreased by a factor of 2.
Answers: 3
Physics, 22.06.2019 17:20
In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy
Answers: 2
Physics, 22.06.2019 22:50
When a pair of 10-n forces act on a box of candy, the net force on the box is a 20 n. b about 14 n. c zero. d any of the above depending on the directions of forces.
Answers: 1
Physics, 23.06.2019 00:00
You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?
Answers: 3
You are outdoors when you hear the constant chirp of a still cricket. you start walking toward the c...
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