Answer:
Kepler's laws apply: First Law: Planetary orbits are elliptical with the sun at a focus. Second Law: The radius vector from the sun to a planet sweeps equal areas in equal times. Third Law: The ratio of the square of the period of revolution and the cube of the ellipse semimajor axis is the same for all planets.
Answer:potential energy=810000j
Kinetic energy=810000j
Mechanical energy=810000j
Explanation:
Mass(m)=5000kg
Velocity(v)=18m/s
Kinetic energy=(mxv^2) ➗ 2
Kinetic energy =(5000x18^2) ➗ 2
Kinetic energy =(5000x18x18) ➗ 2
Kinetic energy =1620000 ➗ 2
Kinetic energy =810000j
Kinetic energy = potential energy
Since energy can neither be created nor destroyed
Answer:
-Increase in temperature: increase
-Decrease in temperature: decrease
-Increase in volume: increase
-Decrease in volume: decrease
-Increase in pressure: increase
-Decrease in pressure: decrease
Explanation:
-Increase in temperature:
● Molecules gain kinetic energy and move fast thus increasing distance
-Decrease in temperature:
● Kinetic energy of molecules decrease so they have smaller distance
-Increase in volume:
● Molecules have more space to move around so distance increase
-Decrease in volume:
● Less space, molecules collide with each other because of decreased distance thus increasing pressure
-Increase in pressure
● Molecules collide with each other and the walls of container increasing pressure so molecules move faster and it increases distance
-Decrease in pressure:
● Molecules collide with each other and walls of container less frequently so distance between molecules decrease