Dvds and blu-ray disks store information in patterns that are read by laser light. the shorter the wavelength of the light, the closer the data tracks can be placed on the disk. part aa blu-ray player uses violet light; a dvd player uses red light. which disk can store more information? drag the terms on the left to the appropriate blanks on the right to complete the sentences. terms: dvdvioletredblu-ray disk400nm700nmsentences to fill in: the wavelength of red light is around blank, whereas the wavelength of violet light is around blank. since blank light has a smaller wavelength the data tracks on a blank can be spaced closer together and the blank can store more information.

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Aball is thrown upward. at a height of 10 meters above the ground, the ball has a potential energy of 50 joules (with the potential energy equal to zero at ground level) and is moving upward with a kinetic energy of 50 joules. what is the maximum height h reached by the ball? consider air friction to be negligible. 1. h ≈ 10 m 2. h ≈ 50 m 3. h ≈ 30 m 4. h ≈ 40 m 5. h ≈ 20 m 003 10.0 points which of the two object shown below has the greatest kinetic energy? a m b 1 2 m v 2v 1. kinetic energies are the same. 2. a 3. b 4. unable to determine. 004 10.0 points tim, with mass 74.6 kg, climbs a gymnasium rope a distance of 3.1 m. the acceleration of gravity is 9.8 m/s 2 . how much potential energy does tim gain? answer in units of j. 005 10.0 points a car is moving at 64 miles per hour. the kinetic energy of that car is 5 × 105 j. how much energy does the same car have when it moves at 111 miles per hour? answer in units of j. 006 10.0 points an 102 kg man climbs up a 1 m high flight of stairs. the acceleration of gravity is 9.81 m/s 2 . w

Could we see a galaxy that is 20 billion light-years away?