KE depends on velocity. It is easier to answer this question in terms of the earth.
The closer the object (earth/comet) is to the sun, the faster it moves. that means that the fastest moving point would be as the comet/earth passes through point C.
The slowest speed would be the furthest away from the sun which is point A.
Answer: The faster the planet moves the greater the Kinetic Energy.
The Slower the planet moves, the less the KE.
Point A is where it is slowest with the lowest amount of energy.
Discussion
The formula for KE is KE = 1/2mv^2. The mass of the comet or earth is a constant. It doesn't change no matter which point the comet passes through. If v goes down KE will go down. If v goes up, KE goes up.
Answer: Light waves move faster than sound waves, which are longitudinal.
Light waves can also travel through space.
Sound waves, being longitudinal, are slower than light waves, and do not travel through space.
A spectroscope is a device used to distribute white light into a spectrum of many different colors. A little prism inside the device divides the light into different colors of light. You look into it, and there will be numbers. The numbers you see will show you the wavelengths of light.
Answer:
the correct one is the third :
can travel through a region void of matter and mechanical waves cannot
Explanation:
Mechanical waves travel supported by a material medium, for example sound waves travel in air, the wave on a string travels on the string.
Electromagnetic waves are produced by the variation of electric and magnetic fields, after producing this variation by the lenz law the variation of one field induces the other, so these waves do not need a material medium to travel.
Of the final statements the correct one is the third :
can travel through a region void of matter and mechanical waves cannot
