Question

Help!!

Answer 1

?

Answer 2

very simple. :)

Answer 3

part b?

Answer 4

its confusing..

Answer 5

is it okay?
\[\theta=800mi/3959mi\]
\[\theta=0.2021\times180/\lambda\]
1.16*??

Answer 6

for part a?

Answer 7

length of arc = θ * r
800 = θ * 3959
θ = 800 / 3959 = 0.2021 radians
= 0.2021 * 360/pi = 23.16 degrees

Answer 8

isn't it 180/pi for degrees and pi/180 for radian?

Answer 9

yea - i'm an idiot!! = so its half of 23.16 = 11.58 degrees

Answer 10

lol its finee...

Answer 11

now you can do part b by using proportion

Answer 12

so is it like...
theta= 1/3/3959
=8.42x10^-5(180/pi)
=0.0048x(1/3600)
=1.34x10^-6 sec

Answer 13

not sure what you've done there
i would work it out
by

(1/3 / 800 ) * 11.58

= 004285 degrees

Answer 14

= 3600 * 0.004285
= 17.37 seconds

Answer 15

ohh so i was doing like r=3959, theta=?, s=1/3 so for this part i did it; theata=s/r

Answer 16

thanks by the way :)

Answer 17

yw