Micky made the following diagram shown to represent the lunar eclipse. Earth is shown as a circle with water and land represented on it. On its left is a smaller circle labeled as Moon. On the left of the moon is the sun. Rays are shown from sun towards the moon and Earth and the shadow of the moon falls on Earth.

Why is Micky's diagram of the lunar eclipse incorrect?

Earth should be between the sun and moon.
The sun should be between the moon and Earth.
Earth should be located vertically above the sun.
The sun should be located at right angles to the moon.

Which of the following are risk factors for emphysema ? correct answer : a and and c          good luck and have a nice benevolentpuppy day! : )

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

The anwser is: wave a has a greater pitch and frequency.