Aspaceship moving at a speed of 0.6c is transporting a michelson-morley apparatus that uses 5 ghz radio waves. the two interferometer arms are parallel to and perpendicular to the spaceship’s direction of motion and both arms have reflectors an identical distance d apart. (a) (7 pts) if the ether theory is correct, for what value of d (if any) will two radio waves emitted at the same time into each arm return ½ wavelength out of phase? (b) (3 pts) if special relativity is correct, for what value of d (if any) will two radio waves emitted at the same time into each arm return ½ wavelength out of phase?

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min