multiplicity

on attachment

Euler Equation

Please see the attached PDF file. I would prefer a solution in PDF format. Thank you!

Speed & refraction

1. A wave has a frequency of 3800 Hz and a wavelength of 0.50 m. What is its speed? Light passes at an angle of 30.0 degrees to the normal from air (n=1.0003) into glass (n=1.50). 2. What is the speed of of light in the glass? 3. What is the angle of refraction? 4. A light wave has a wavelength of 680 nm. What is its frequency? Please show the formulas used, work done and the answer. Thank you!

lenses

A converging lens has a focal length of 30 cm. An object that is 20 cm tall is placed 45 cm from the lens. 1. What is the image distance? a. 45 cm, other side of lens b. 20 cm, same side of lens c. 100 cm, other side of lens d. 30 cm, same side of lens 2. Is the image upright or up-side-down? 3. How tall is the image? 4. Two waves interfere. When a crest of wave "G" that is 4 cm tall passes through a trough of wave "J" that is -5 cm deep. The resulting wave has an amplitude of ___. A. -20cm B. 0cm C. -1cm D. +1cm Please show the formulas used, work done and the answer. Thank you!

current & resistance

1. An ant is 3 cm from a magniflying lens with a focal length of 5 cm. The image of the bug is A. real, upright, enlarged, other side of lens B. virtual, upright, enlarged, same side of lens C. virtual, smaller, inverted, same side of lens D. real, upright smaller, other side of lens A 5kW heater is connected to a 200 V source of emf 2. What is the current through the heater? 3. What is the resistance of the heater? 4. If the voltage remained the same and the resistance tripled what would happen to the power dissipation? A. it would increase B. it would decrease C. there would be no change Please show... click for more