69 i agree with her hope this helps
Answer: im sorry but the way your asking is a bit confusing. mind restating it? btw i love ur profile pic
Answer:
The two space stations are 644.1653 miles far apart.
Explanation:
The distance of Huston and the International Space Station is 323 miles.
The distance of Huston and the Chinese space station Tiangong is 462 miles.
Angle between the two stations = 109⁰
So, applying the law of cosines as;
c² = a² + b² - 2abcosC
From the picture shown below, a = 323 miles and b = 462 miles
So,
c² = 323² + 462² + 2(323)(462)cos109 = 104329 + 213444 - 298452cos109
cos109 = -0.3256
So,
c² = 414948.9712
<u>c = 644.1653 miles</u>
Ok the answer to this is quite simple all you do is multiply the objective lens magnification times the eye piece magnification. So multiply 30 times 5. 30 x 5 = 150. So your answer is answer choice C. 150 Hope this helped you. :)
<span>The answer is {A} 980 J.
To obtain this answer you would use your Sin function on the calculator:
Sin θ = 5 / 20 = 0.25 therefore θ = 14.4775°
F net = m g sin θ = 20 * 9.8 * 0.25 = 49N
W = F * d = 49 * 20 = 980 J
( my phone keyboard does not include the θ I had to copy the solution to “show the work” )</span>