Physics, 05.10.2019 01:00 zalyndevola
In this experiment you observed the polarisation changing properties of beetles. an obvious evolutionary motivation for this is secret signalling, but thits requires the same species to possess polarisation sensitive vision. has this beetle been shown to have such vision, and if so, how was this shown? what are some non-beetle examples of polarisation sensitive animal vision and what are the evolutionary benefits of this aside from secret signalling? there any animals that can detect animal more useful than ability to affect or discriminate linear polarisation? what is haidinger's brush? t affect polarisation?
Answers: 2
Physics, 22.06.2019 09:00, celestemaria0727
For which pair of objects would adding the same a
Answers: 1
Physics, 22.06.2019 10:00, jeffffffff
**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z
Answers: 1
Physics, 22.06.2019 19:30, rprest00
Amass m = 74 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius r = 18.4 m and finally a flat straight section at the same height as the center of the loop (18.4 m off the ground). since the mass would not make it around the loop if released from the height of the top of the loop (do you know why? ) it must be released above the top of the loop-the-loop height. (assume the mass never leaves the smooth track at any point on its path.) 1. what is the minimum speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track? 2. what height above the ground must the mass begin to make it around the loop-the-loop? 3. if the mass has just enough speed to make it around the loop without leaving the track, what will its speed be at the bottom of the loop? 4. if the mass has just enough speed to make it around the loop without leaving the track, what is its speed at the final flat level (18.4 m off the ground)? 5. now a spring with spring constant k = 15600 n/m is used on the final flat surface to stop the mass. how far does the spring compress?
Answers: 3
In this experiment you observed the polarisation changing properties of beetles. an obvious evolutio...
English, 01.11.2019 02:31
Health, 01.11.2019 02:31
English, 01.11.2019 02:31
Mathematics, 01.11.2019 02:31
Mathematics, 01.11.2019 02:31