A satellite is orbiting Earth at a distance of 1000km from the Earth's surface. If the radius of Earth is approximately 6371km, the mass of the Earth mE=5.9722×10^24 kg and

mass of the satellite ms=100 000kg, calculate:

a) the velocity of the satellite,

b) the total energy of the satellite in that orbit,

c) and the gravitational potential

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?