Recent Homework Questions About Earth
Thanks so much! I now have all the correct answers, thanks for your help.
Monday, August 19, 2013 at 4:27pm
Imagine that you are an agent who is interested in publishing new authors. Choose any book you like and present the book to a publisher in New York. How's this; To whom it may concern, A very great friend of mine decided to begin writing the bible for kids. He just ...
Saturday, August 17, 2013 at 2:17am
A person standing h feet above sea level can seecd miles to the horizon. The distance r is the radius of the earth = 3963 miles. d is the tangent to the circle forming a right angle to the radius. h + r is the tangent. Solve using Pythagorean theorem and secant-tangent theorem...
Thursday, August 15, 2013 at 11:33pm
Earth Space (In desperate need)
Just FYI, earth's rotation on its axis causes day/night, not the seasons. The earth's axis tilts from being perpendicular to the plane of the ecliptic, and that is what causes the seasons. (The orbit of earth is very very close to circular, so earth's revolution ...
Thursday, August 15, 2013 at 4:07pm
Initial Ke = (1/2) m v^2 = (1/2)(61)(3.5)^2 drop in potential energy = m g h I assume that the 62 m is along the slope so h = 62 sin 23 which is drop down toward center of earth so drop in potential = 61*9.81*62 sin 23 work done against friction = friction force * distance = ...
Wednesday, August 14, 2013 at 6:38pm
find the minimum height above the surface of the earth so that the pilot at point a can see an object on the horizon at c 125 miles away. assume the diameter of the earth to be 8000 miles.
Tuesday, August 13, 2013 at 8:09am
if the speed is high enough, the stone will in fact not fall back to the same spot, due to coriolis effect caused by the earth's rotation. Under everyday conditions, the deflection is so small that it makes no practical difference, and the object appears to fall right back...
Thursday, August 8, 2013 at 10:13am
Velo.of earth=1.5x10^11/365x24x3600 m/sec if we take time of revolution as 365 days. Momentum = mass x velocity. Calculate 1.5x10^11x6x10^24/365x24x3600 kgm 9x10^25/1.151x10^10=7.819x10^16 kgm
Thursday, August 8, 2013 at 7:05am