**Answer:**

s = vcos(x)t

50 = 25cos(45)t

cos(45)t = 2

t = 2/cos(45) = 2sqrt(2)

h = vsin(x)t + gt^2/2

h = 25sin(45)*2sqrt(2) - 4.9*8

h = 10.8 metres

**Explanation:**

D=m/V therefore the answer is 120/200 or 0.6

The correct answer is **circular. **Copernicus and other astronomers before him thought that celestial bodies followed a **circular **orbital path. Copernicus was a Polish astronomer that concluded that the sun is at rest near the center of the universe and the earth is revolving around it annually. This theory is called heliocentric.

**Answer: D. wealthy**

**Explanation: on the e2020 test its right**