Answer and Explanation:
How far the medium (crests and troughs, or compressions and rarefactions) moves from _*rest position*_ the place the medium is when not moving). The _*more*_ energy a wave carries, the _*larger_ its amplitude. Amplitude is related to energy by _(E = CA²)_.
where C is a constant
Answer:
the answer is option A = photoelectric effect
Explanation:
If the threshold frequency of a metal is lower than the energy of X-rays, then photoelectric effect will happen.
Helped me learn how to spell words, held pictures or papers up, collected metal items that were lost
<u>Answer: The model is described by :</u>
The strength of the field increases as you get closer to Earth, as shown by the smaller spaces between the circles.
Explanation :
According to universal gravitational law, the force acting in the universe between two objects is given by :

It is clear that the gravitational force depends directly on the product of masses and inversely on the square of the distance between them.
The given image shows a model of the gravitational field around Earth. The arrows in the image show the direction of the force. Gravitational field depends on the position of objects.
As we move closer to the earth, the force increases and hence the field increase.
So, the correct option is (D) " The strength of the field increases as you get closer to Earth, as shown by the smaller spaces between the circles ".