The purpose or how it orbits
The purpose is for future missions into space such as the moon, mars, or asteroids
It’s orbits due to being in low orbit of earth
Answer: 16.8 m
Explanation:
The motion of the lemming is a projectile motion, consisting of two independent motions:
- on the horizontal (x) axis, a uniform motion, with constant speed v = 2.87 m/s
- on the vertical (y) axis, an accelerated motion, with constant acceleration (downward)
The lemming lands in the water at x = 5.32 m away from the bas of the cliff, so we can calculate the time it takes to hit the water:
And now, by considering the motion on the vertical direction:
we can find the height of the cliff (h) by requiring that y(t)=0:
Answer:
The degradation of energy is the loss of useful energy: energy is conserved in changes, but tends to be transformed into thermal energy, which is a less usable form of energy.
Explanation:
Some forms of energy can be transformed into others. In these transformations, energy degrades, loses quality. In any transformation, part of the energy is converted into heat or heat energy.
Any type of energy can be completely transformed into heat; but, this cannot be completely transformed into another type of energy. It is said, then, that heat is a degraded form of energy. Are examples:
- The electrical energy, when going through a resistance.
- Chemical energy, in the combustion of some substances.
- Mechanical energy, by shock or friction.
Therefore, the Yield is defined as the ratio (in% percent) between the useful energy obtained and the energy contributed in a transformation.
R = ( useful energy / total energy) * 100
where R is the yield