225 = 1/2 (50) (v2)
225 = 25 (v2)
225/25 = v2
9 = v2
√9 = v
v = 3 m/s
Explanation:
Internal energy = heat + work
U = Q + W
Since there's no change in volume (rigid walls), W = 0.
U = Q
U = n Cᵥ ΔT
U = (4.0 mol) (2.5 × 8.314 J/mol/K) (354 C − 17 C)
U = 28,000 J
The gravitational force between <em>m₁</em> and <em>m₂</em> has magnitude
while the gravitational force between <em>m₁</em> and <em>m₃</em> has magnitude
where <em>x</em> is measured in m.
The mass <em>m₁</em> is attracted to <em>m₂</em> in one direction, and attracted to <em>m₃</em> in the opposite direction such that <em>m₁</em> in equilibrium. So by Newton's second law, we have
Solve for <em>x</em> :
The solution with the negative square root is negative, so we throw it out. The other is the one we want,
All answers to the Earth Science, Meteorology: Part 1 Unit Test
1. B. March 21
2. D. December 21
3. B. They move faster.
4. C. 300,000 kilometers per second
5. B. Conduction
6. A. longer than those emitted by the sun
7. D. Water vapor and carbon dioxide
8. C. Scattering
9. D. Both b and c
10. C. There is a greater percentage of water surface in the Sourhern Hemisphere
11. D. Both a and b
12. B. Absorbing outgoing radiation
13. D. Deposition
14. B. It contains more water vapor than cold air
15. D. Both a and b
16. D. All of the above
17. B. Subtropical high
18. B. Day and flows torad the land
19. Essay
20. Essay
21. Essay
22. Essay
